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Serial matrix in J
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| mod12 =: 12 & | | |
| matrix =. monad : 0 | |
| m =. mod12 y -/ (y - (0 { y)) | |
| ) | |
| pcs =: i. 12 | |
| shuf =: {~ ?~@# | |
| newrow =: shuf pcs | |
| matrix newrow | |
| 5 8 7 3 2 11 1 6 9 4 10 0 | |
| 2 5 4 0 11 8 10 3 6 1 7 9 | |
| 3 6 5 1 0 9 11 4 7 2 8 10 | |
| 7 10 9 5 4 1 3 8 11 6 0 2 | |
| 8 11 10 6 5 2 4 9 0 7 1 3 | |
| 11 2 1 9 8 5 7 0 3 10 4 6 | |
| 9 0 11 7 6 3 5 10 1 8 2 4 | |
| 4 7 6 2 1 10 0 5 8 3 9 11 | |
| 1 4 3 11 10 7 9 2 5 0 6 8 | |
| 6 9 8 4 3 0 2 7 10 5 11 1 | |
| 0 3 2 10 9 6 8 1 4 11 5 7 | |
| 10 1 0 8 7 4 6 11 2 9 3 5 | |
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