Parity checks
X-checks 252 (max weight 6) · Z-checks 252 (max weight 6)
H_X (252 checks, sparse supports)
[0, 25, 157, 252, 290, 291]
[1, 26, 158, 253, 487, 488]
[2, 27, 159, 254, 292, 293]
[3, 14, 160, 255, 476, 489]
[4, 15, 161, 256, 280, 281]
[5, 16, 162, 257, 477, 478]
[6, 17, 163, 258, 282, 283]
[7, 18, 164, 259, 479, 480]
[8, 19, 165, 260, 284, 285]
[9, 20, 166, 261, 481, 482]
[10, 21, 167, 262, 286, 287]
[11, 22, 154, 263, 483, 484]
[12, 23, 155, 264, 288, 289]
[13, 24, 156, 265, 485, 486]
[11, 14, 143, 266, 304, 305]
[12, 15, 144, 267, 501, 502]
[13, 16, 145, 268, 306, 307]
[0, 17, 146, 269, 490, 503]
[1, 18, 147, 270, 294, 295]
[2, 19, 148, 271, 491, 492]
[3, 20, 149, 272, 296, 297]
[4, 21, 150, 273, 493, 494]
[5, 22, 151, 274, 298, 299]
[6, 23, 152, 275, 495, 496]
[7, 24, 153, 276, 300, 301]
[8, 25, 140, 277, 497, 498]
[9, 26, 141, 278, 302, 303]
[10, 27, 142, 279, 499, 500]
[28, 129, 249, 280, 318, 319]
[29, 130, 250, 263, 264, 281]
[30, 131, 251, 282, 320, 321]
[31, 132, 238, 252, 265, 283]
[32, 133, 239, 284, 308, 309]
[33, 134, 240, 253, 254, 285]
[34, 135, 241, 286, 310, 311]
[35, 136, 242, 255, 256, 287]
[36, 137, 243, 288, 312, 313]
[37, 138, 244, 257, 258, 289]
[38, 139, 245, 290, 314, 315]
[39, 126, 246, 259, 260, 291]
[40, 127, 247, 292, 316, 317]
[41, 128, 248, 261, 262, 293]
[42, 115, 235, 294, 332, 333]
[43, 116, 236, 277, 278, 295]
[44, 117, 237, 296, 334, 335]
[45, 118, 224, 266, 279, 297]
[46, 119, 225, 298, 322, 323]
[47, 120, 226, 267, 268, 299]
[48, 121, 227, 300, 324, 325]
[49, 122, 228, 269, 270, 301]
[50, 123, 229, 302, 326, 327]
[51, 124, 230, 271, 272, 303]
[52, 125, 231, 304, 328, 329]
[53, 112, 232, 273, 274, 305]
[54, 113, 233, 306, 330, 331]
[55, 114, 234, 275, 276, 307]
[56, 101, 221, 308, 346, 347]
[57, 102, 222, 291, 292, 309]
[58, 103, 223, 310, 348, 349]
[59, 104, 210, 280, 293, 311]
[60, 105, 211, 312, 336, 337]
[61, 106, 212, 281, 282, 313]
[62, 107, 213, 314, 338, 339]
[63, 108, 214, 283, 284, 315]
[64, 109, 215, 316, 340, 341]
[65, 110, 216, 285, 286, 317]
[66, 111, 217, 318, 342, 343]
[67, 98, 218, 287, 288, 319]
[68, 99, 219, 320, 344, 345]
[69, 100, 220, 289, 290, 321]
[70, 87, 207, 322, 360, 361]
[71, 88, 208, 305, 306, 323]
[72, 89, 209, 324, 362, 363]
[73, 90, 196, 294, 307, 325]
[74, 91, 197, 326, 350, 351]
[75, 92, 198, 295, 296, 327]
[76, 93, 199, 328, 352, 353]
[77, 94, 200, 297, 298, 329]
[78, 95, 201, 330, 354, 355]
[79, 96, 202, 299, 300, 331]
[80, 97, 203, 332, 356, 357]
[81, 84, 204, 301, 302, 333]
[82, 85, 205, 334, 358, 359]
[83, 86, 206, 303, 304, 335]
[73, 84, 193, 336, 374, 375]
[74, 85, 194, 319, 320, 337]
[75, 86, 195, 338, 376, 377]
[76, 87, 182, 308, 321, 339]
[77, 88, 183, 340, 364, 365]
[78, 89, 184, 309, 310, 341]
[79, 90, 185, 342, 366, 367]
[80, 91, 186, 311, 312, 343]
[81, 92, 187, 344, 368, 369]
[82, 93, 188, 313, 314, 345]
[83, 94, 189, 346, 370, 371]
[70, 95, 190, 315, 316, 347]
[71, 96, 191, 348, 372, 373]
[72, 97, 192, 317, 318, 349]
[59, 98, 179, 350, 388, 389]
[60, 99, 180, 333, 334, 351]
[61, 100, 181, 352, 390, 391]
[62, 101, 168, 322, 335, 353]
[63, 102, 169, 354, 378, 379]
[64, 103, 170, 323, 324, 355]
[65, 104, 171, 356, 380, 381]
[66, 105, 172, 325, 326, 357]
[67, 106, 173, 358, 382, 383]
[68, 107, 174, 327, 328, 359]
[69, 108, 175, 360, 384, 385]
[56, 109, 176, 329, 330, 361]
[57, 110, 177, 362, 386, 387]
[58, 111, 178, 331, 332, 363]
[45, 112, 165, 364, 402, 403]
[46, 113, 166, 347, 348, 365]
[47, 114, 167, 366, 404, 405]
[48, 115, 154, 336, 349, 367]
[49, 116, 155, 368, 392, 393]
[50, 117, 156, 337, 338, 369]
[51, 118, 157, 370, 394, 395]
[52, 119, 158, 339, 340, 371]
[53, 120, 159, 372, 396, 397]
[54, 121, 160, 341, 342, 373]
[55, 122, 161, 374, 398, 399]
[42, 123, 162, 343, 344, 375]
[43, 124, 163, 376, 400, 401]
[44, 125, 164, 345, 346, 377]
[31, 126, 151, 378, 416, 417]
[32, 127, 152, 361, 362, 379]
[33, 128, 153, 380, 418, 419]
[34, 129, 140, 350, 363, 381]
[35, 130, 141, 382, 406, 407]
[36, 131, 142, 351, 352, 383]
[37, 132, 143, 384, 408, 409]
[38, 133, 144, 353, 354, 385]
[39, 134, 145, 386, 410, 411]
[40, 135, 146, 355, 356, 387]
[41, 136, 147, 388, 412, 413]
[28, 137, 148, 357, 358, 389]
[29, 138, 149, 390, 414, 415]
[30, 139, 150, 359, 360, 391]
[17, 137, 140, 392, 430, 431]
[18, 138, 141, 375, 376, 393]
[19, 139, 142, 394, 432, 433]
[20, 126, 143, 364, 377, 395]
[21, 127, 144, 396, 420, 421]
[22, 128, 145, 365, 366, 397]
[23, 129, 146, 398, 422, 423]
[24, 130, 147, 367, 368, 399]
[25, 131, 148, 400, 424, 425]
[26, 132, 149, 369, 370, 401]
[27, 133, 150, 402, 426, 427]
[14, 134, 151, 371, 372, 403]
[15, 135, 152, 404, 428, 429]
[16, 136, 153, 373, 374, 405]
[3, 123, 154, 406, 444, 445]
[4, 124, 155, 389, 390, 407]
[5, 125, 156, 408, 446, 447]
[6, 112, 157, 378, 391, 409]
[7, 113, 158, 410, 434, 435]
[8, 114, 159, 379, 380, 411]
[9, 115, 160, 412, 436, 437]
[10, 116, 161, 381, 382, 413]
[11, 117, 162, 414, 438, 439]
[12, 118, 163, 383, 384, 415]
[13, 119, 164, 416, 440, 441]
[0, 120, 165, 385, 386, 417]
[1, 121, 166, 418, 442, 443]
[2, 122, 167, 387, 388, 419]
[109, 168, 241, 420, 458, 459]
[110, 169, 242, 403, 404, 421]
[111, 170, 243, 422, 460, 461]
[98, 171, 244, 392, 405, 423]
[99, 172, 245, 424, 448, 449]
[100, 173, 246, 393, 394, 425]
[101, 174, 247, 426, 450, 451]
[102, 175, 248, 395, 396, 427]
[103, 176, 249, 428, 452, 453]
[104, 177, 250, 397, 398, 429]
[105, 178, 251, 430, 454, 455]
[106, 179, 238, 399, 400, 431]
[107, 180, 239, 432, 456, 457]
[108, 181, 240, 401, 402, 433]
[95, 182, 227, 434, 472, 473]
[96, 183, 228, 417, 418, 435]
[97, 184, 229, 436, 474, 475]
[84, 185, 230, 406, 419, 437]
[85, 186, 231, 438, 462, 463]
[86, 187, 232, 407, 408, 439]
[87, 188, 233, 440, 464, 465]
[88, 189, 234, 409, 410, 441]
[89, 190, 235, 442, 466, 467]
[90, 191, 236, 411, 412, 443]
[91, 192, 237, 444, 468, 469]
[92, 193, 224, 413, 414, 445]
[93, 194, 225, 446, 470, 471]
[94, 195, 226, 415, 416, 447]
[81, 196, 213, 448, 486, 487]
[82, 197, 214, 431, 432, 449]
[83, 198, 215, 450, 488, 489]
[70, 199, 216, 420, 433, 451]
[71, 200, 217, 452, 476, 477]
[72, 201, 218, 421, 422, 453]
[73, 202, 219, 454, 478, 479]
[74, 203, 220, 423, 424, 455]
[75, 204, 221, 456, 480, 481]
[76, 205, 222, 425, 426, 457]
[77, 206, 223, 458, 482, 483]
[78, 207, 210, 427, 428, 459]
[79, 208, 211, 460, 484, 485]
[80, 209, 212, 429, 430, 461]
[67, 199, 210, 462, 500, 501]
[68, 200, 211, 445, 446, 463]
[69, 201, 212, 464, 502, 503]
[56, 202, 213, 434, 447, 465]
[57, 203, 214, 466, 490, 491]
[58, 204, 215, 435, 436, 467]
[59, 205, 216, 468, 492, 493]
[60, 206, 217, 437, 438, 469]
[61, 207, 218, 470, 494, 495]
[62, 208, 219, 439, 440, 471]
[63, 209, 220, 472, 496, 497]
[64, 196, 221, 441, 442, 473]
[65, 197, 222, 474, 498, 499]
[66, 198, 223, 443, 444, 475]
[53, 185, 224, 262, 263, 476]
[54, 186, 225, 459, 460, 477]
[55, 187, 226, 264, 265, 478]
[42, 188, 227, 448, 461, 479]
[43, 189, 228, 252, 253, 480]
[44, 190, 229, 449, 450, 481]
[45, 191, 230, 254, 255, 482]
[46, 192, 231, 451, 452, 483]
[47, 193, 232, 256, 257, 484]
[48, 194, 233, 453, 454, 485]
[49, 195, 234, 258, 259, 486]
[50, 182, 235, 455, 456, 487]
[51, 183, 236, 260, 261, 488]
[52, 184, 237, 457, 458, 489]
[39, 171, 238, 276, 277, 490]
[40, 172, 239, 473, 474, 491]
[41, 173, 240, 278, 279, 492]
[28, 174, 241, 462, 475, 493]
[29, 175, 242, 266, 267, 494]
[30, 176, 243, 463, 464, 495]
[31, 177, 244, 268, 269, 496]
[32, 178, 245, 465, 466, 497]
[33, 179, 246, 270, 271, 498]
[34, 180, 247, 467, 468, 499]
[35, 181, 248, 272, 273, 500]
[36, 168, 249, 469, 470, 501]
[37, 169, 250, 274, 275, 502]
[38, 170, 251, 471, 472, 503]
H_Z (252 checks, sparse supports)
[0, 31, 228, 252, 269, 417]
[1, 33, 228, 253, 270, 418]
[2, 33, 230, 254, 271, 419]
[3, 35, 230, 255, 272, 406]
[4, 35, 232, 256, 273, 407]
[5, 37, 232, 257, 274, 408]
[6, 37, 234, 258, 275, 409]
[7, 39, 234, 259, 276, 410]
[8, 39, 236, 260, 277, 411]
[9, 41, 236, 261, 278, 412]
[10, 41, 224, 262, 279, 413]
[11, 29, 224, 263, 266, 414]
[12, 29, 226, 264, 267, 415]
[13, 31, 226, 265, 268, 416]
[14, 45, 242, 255, 266, 403]
[15, 47, 242, 256, 267, 404]
[16, 47, 244, 257, 268, 405]
[17, 49, 244, 258, 269, 392]
[18, 49, 246, 259, 270, 393]
[19, 51, 246, 260, 271, 394]
[20, 51, 248, 261, 272, 395]
[21, 53, 248, 262, 273, 396]
[22, 53, 250, 263, 274, 397]
[23, 55, 250, 264, 275, 398]
[24, 55, 238, 265, 276, 399]
[25, 43, 238, 252, 277, 400]
[26, 43, 240, 253, 278, 401]
[27, 45, 240, 254, 279, 402]
[4, 28, 59, 280, 389, 493]
[4, 29, 61, 281, 390, 494]
[6, 30, 61, 282, 391, 495]
[6, 31, 63, 283, 378, 496]
[8, 32, 63, 284, 379, 497]
[8, 33, 65, 285, 380, 498]
[10, 34, 65, 286, 381, 499]
[10, 35, 67, 287, 382, 500]
[12, 36, 67, 288, 383, 501]
[12, 37, 69, 289, 384, 502]
[0, 38, 69, 290, 385, 503]
[0, 39, 57, 291, 386, 490]
[2, 40, 57, 292, 387, 491]
[2, 41, 59, 293, 388, 492]
[18, 42, 73, 294, 375, 479]
[18, 43, 75, 295, 376, 480]
[20, 44, 75, 296, 377, 481]
[20, 45, 77, 297, 364, 482]
[22, 46, 77, 298, 365, 483]
[22, 47, 79, 299, 366, 484]
[24, 48, 79, 300, 367, 485]
[24, 49, 81, 301, 368, 486]
[26, 50, 81, 302, 369, 487]
[26, 51, 83, 303, 370, 488]
[14, 52, 83, 304, 371, 489]
[14, 53, 71, 305, 372, 476]
[16, 54, 71, 306, 373, 477]
[16, 55, 73, 307, 374, 478]
[32, 56, 87, 308, 361, 465]
[32, 57, 89, 309, 362, 466]
[34, 58, 89, 310, 363, 467]
[34, 59, 91, 311, 350, 468]
[36, 60, 91, 312, 351, 469]
[36, 61, 93, 313, 352, 470]
[38, 62, 93, 314, 353, 471]
[38, 63, 95, 315, 354, 472]
[40, 64, 95, 316, 355, 473]
[40, 65, 97, 317, 356, 474]
[28, 66, 97, 318, 357, 475]
[28, 67, 85, 319, 358, 462]
[30, 68, 85, 320, 359, 463]
[30, 69, 87, 321, 360, 464]
[46, 70, 101, 322, 347, 451]
[46, 71, 103, 323, 348, 452]
[48, 72, 103, 324, 349, 453]
[48, 73, 105, 325, 336, 454]
[50, 74, 105, 326, 337, 455]
[50, 75, 107, 327, 338, 456]
[52, 76, 107, 328, 339, 457]
[52, 77, 109, 329, 340, 458]
[54, 78, 109, 330, 341, 459]
[54, 79, 111, 331, 342, 460]
[42, 80, 111, 332, 343, 461]
[42, 81, 99, 333, 344, 448]
[44, 82, 99, 334, 345, 449]
[44, 83, 101, 335, 346, 450]
[60, 84, 115, 333, 336, 437]
[60, 85, 117, 334, 337, 438]
[62, 86, 117, 335, 338, 439]
[62, 87, 119, 322, 339, 440]
[64, 88, 119, 323, 340, 441]
[64, 89, 121, 324, 341, 442]
[66, 90, 121, 325, 342, 443]
[66, 91, 123, 326, 343, 444]
[68, 92, 123, 327, 344, 445]
[68, 93, 125, 328, 345, 446]
[56, 94, 125, 329, 346, 447]
[56, 95, 113, 330, 347, 434]
[58, 96, 113, 331, 348, 435]
[58, 97, 115, 332, 349, 436]
[74, 98, 129, 319, 350, 423]
[74, 99, 131, 320, 351, 424]
[76, 100, 131, 321, 352, 425]
[76, 101, 133, 308, 353, 426]
[78, 102, 133, 309, 354, 427]
[78, 103, 135, 310, 355, 428]
[80, 104, 135, 311, 356, 429]
[80, 105, 137, 312, 357, 430]
[82, 106, 137, 313, 358, 431]
[82, 107, 139, 314, 359, 432]
[70, 108, 139, 315, 360, 433]
[70, 109, 127, 316, 361, 420]
[72, 110, 127, 317, 362, 421]
[72, 111, 129, 318, 363, 422]
[88, 112, 143, 305, 364, 409]
[88, 113, 145, 306, 365, 410]
[90, 114, 145, 307, 366, 411]
[90, 115, 147, 294, 367, 412]
[92, 116, 147, 295, 368, 413]
[92, 117, 149, 296, 369, 414]
[94, 118, 149, 297, 370, 415]
[94, 119, 151, 298, 371, 416]
[96, 120, 151, 299, 372, 417]
[96, 121, 153, 300, 373, 418]
[84, 122, 153, 301, 374, 419]
[84, 123, 141, 302, 375, 406]
[86, 124, 141, 303, 376, 407]
[86, 125, 143, 304, 377, 408]
[102, 126, 157, 291, 378, 395]
[102, 127, 159, 292, 379, 396]
[104, 128, 159, 293, 380, 397]
[104, 129, 161, 280, 381, 398]
[106, 130, 161, 281, 382, 399]
[106, 131, 163, 282, 383, 400]
[108, 132, 163, 283, 384, 401]
[108, 133, 165, 284, 385, 402]
[110, 134, 165, 285, 386, 403]
[110, 135, 167, 286, 387, 404]
[98, 136, 167, 287, 388, 405]
[98, 137, 155, 288, 389, 392]
[100, 138, 155, 289, 390, 393]
[100, 139, 157, 290, 391, 394]
[116, 140, 171, 277, 381, 392]
[116, 141, 173, 278, 382, 393]
[118, 142, 173, 279, 383, 394]
[118, 143, 175, 266, 384, 395]
[120, 144, 175, 267, 385, 396]
[120, 145, 177, 268, 386, 397]
[122, 146, 177, 269, 387, 398]
[122, 147, 179, 270, 388, 399]
[124, 148, 179, 271, 389, 400]
[124, 149, 181, 272, 390, 401]
[112, 150, 181, 273, 391, 402]
[112, 151, 169, 274, 378, 403]
[114, 152, 169, 275, 379, 404]
[114, 153, 171, 276, 380, 405]
[130, 154, 185, 263, 367, 406]
[130, 155, 187, 264, 368, 407]
[132, 156, 187, 265, 369, 408]
[132, 157, 189, 252, 370, 409]
[134, 158, 189, 253, 371, 410]
[134, 159, 191, 254, 372, 411]
[136, 160, 191, 255, 373, 412]
[136, 161, 193, 256, 374, 413]
[138, 162, 193, 257, 375, 414]
[138, 163, 195, 258, 376, 415]
[126, 164, 195, 259, 377, 416]
[126, 165, 183, 260, 364, 417]
[128, 166, 183, 261, 365, 418]
[128, 167, 185, 262, 366, 419]
[144, 168, 199, 353, 420, 501]
[144, 169, 201, 354, 421, 502]
[146, 170, 201, 355, 422, 503]
[146, 171, 203, 356, 423, 490]
[148, 172, 203, 357, 424, 491]
[148, 173, 205, 358, 425, 492]
[150, 174, 205, 359, 426, 493]
[150, 175, 207, 360, 427, 494]
[152, 176, 207, 361, 428, 495]
[152, 177, 209, 362, 429, 496]
[140, 178, 209, 363, 430, 497]
[140, 179, 197, 350, 431, 498]
[142, 180, 197, 351, 432, 499]
[142, 181, 199, 352, 433, 500]
[158, 182, 213, 339, 434, 487]
[158, 183, 215, 340, 435, 488]
[160, 184, 215, 341, 436, 489]
[160, 185, 217, 342, 437, 476]
[162, 186, 217, 343, 438, 477]
[162, 187, 219, 344, 439, 478]
[164, 188, 219, 345, 440, 479]
[164, 189, 221, 346, 441, 480]
[166, 190, 221, 347, 442, 481]
[166, 191, 223, 348, 443, 482]
[154, 192, 223, 349, 444, 483]
[154, 193, 211, 336, 445, 484]
[156, 194, 211, 337, 446, 485]
[156, 195, 213, 338, 447, 486]
[172, 196, 227, 325, 448, 473]
[172, 197, 229, 326, 449, 474]
[174, 198, 229, 327, 450, 475]
[174, 199, 231, 328, 451, 462]
[176, 200, 231, 329, 452, 463]
[176, 201, 233, 330, 453, 464]
[178, 202, 233, 331, 454, 465]
[178, 203, 235, 332, 455, 466]
[180, 204, 235, 333, 456, 467]
[180, 205, 237, 334, 457, 468]
[168, 206, 237, 335, 458, 469]
[168, 207, 225, 322, 459, 470]
[170, 208, 225, 323, 460, 471]
[170, 209, 227, 324, 461, 472]
[186, 210, 241, 311, 459, 462]
[186, 211, 243, 312, 460, 463]
[188, 212, 243, 313, 461, 464]
[188, 213, 245, 314, 448, 465]
[190, 214, 245, 315, 449, 466]
[190, 215, 247, 316, 450, 467]
[192, 216, 247, 317, 451, 468]
[192, 217, 249, 318, 452, 469]
[194, 218, 249, 319, 453, 470]
[194, 219, 251, 320, 454, 471]
[182, 220, 251, 321, 455, 472]
[182, 221, 239, 308, 456, 473]
[184, 222, 239, 309, 457, 474]
[184, 223, 241, 310, 458, 475]
[3, 200, 224, 297, 445, 476]
[5, 200, 225, 298, 446, 477]
[5, 202, 226, 299, 447, 478]
[7, 202, 227, 300, 434, 479]
[7, 204, 228, 301, 435, 480]
[9, 204, 229, 302, 436, 481]
[9, 206, 230, 303, 437, 482]
[11, 206, 231, 304, 438, 483]
[11, 208, 232, 305, 439, 484]
[13, 208, 233, 306, 440, 485]
[13, 196, 234, 307, 441, 486]
[1, 196, 235, 294, 442, 487]
[1, 198, 236, 295, 443, 488]
[3, 198, 237, 296, 444, 489]
[17, 214, 238, 283, 431, 490]
[19, 214, 239, 284, 432, 491]
[19, 216, 240, 285, 433, 492]
[21, 216, 241, 286, 420, 493]
[21, 218, 242, 287, 421, 494]
[23, 218, 243, 288, 422, 495]
[23, 220, 244, 289, 423, 496]
[25, 220, 245, 290, 424, 497]
[25, 222, 246, 291, 425, 498]
[27, 222, 247, 292, 426, 499]
[27, 210, 248, 293, 427, 500]
[15, 210, 249, 280, 428, 501]
[15, 212, 250, 281, 429, 502]
[17, 212, 251, 282, 430, 503]