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