A157171 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 11 | | 1 |
| | | | | | | | | 1 | | 21 | | 21 | | 1 |
| | | | | | | | 1 | | 31 | | 66 | | 31 | | 1 |
| | | | | | | 1 | | 41 | | 136 | | 136 | | 41 | | 1 |
| | | | | | 1 | | 51 | | 231 | | 362 | | 231 | | 51 | | 1 |
| | | | | 1 | | 61 | | 351 | | 755 | | 755 | | 351 | | 61 | | 1 |
| | | | 1 | | 71 | | 496 | | 1361 | | 1870 | | 1361 | | 496 | | 71 | | 1 |
| | | 1 | | 81 | | 666 | | 2226 | | 3906 | | 3906 | | 2226 | | 666 | | 81 | | 1 |
| | 1 | | 91 | | 861 | | 3396 | | 7266 | | 9282 | | 7266 | | 3396 | | 861 | | 91 | | 1 |
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A157171 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 11 | 21 | 31 | 41 | 51 | 61 | 71 | 81 | 91
| 1 | 21 | 66 | 136 | 231 | 351 | 496 | 666 | 861
| 1 | 31 | 136 | 362 | 755 | 1361 | 2226 | 3396
| 1 | 41 | 231 | 755 | 1870 | 3906 | 7266
| 1 | 51 | 351 | 1361 | 3906 | 9282
| 1 | 61 | 496 | 2226 | 7266
| 1 | 71 | 666 | 3396
| 1 | 81 | 861
| 1 | 91
| 1
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A157171 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 11 | 21 | 31 | 41 | 51 | 61 | 71 | 81 | 91
| | | 1 | 21 | 66 | 136 | 231 | 351 | 496 | 666 | 861
| | | | 1 | 31 | 136 | 362 | 755 | 1361 | 2226 | 3396
| | | | | 1 | 41 | 231 | 755 | 1870 | 3906 | 7266
| | | | | | 1 | 51 | 351 | 1361 | 3906 | 9282
| | | | | | | 1 | 61 | 496 | 2226 | 7266
| | | | | | | | 1 | 71 | 666 | 3396
| | | | | | | | | 1 | 81 | 861
| | | | | | | | | | 1 | 91
| | | | | | | | | | | 1
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