A271942 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | | | 1 | | 5 | | 6 | | 1 |
| | | | | | | | | | 1 | | 7 | | 16 | | 10 | | 1 |
| | | | | | | | | 1 | | 9 | | 31 | | 40 | | 15 | | 1 |
| | | | | | | | 1 | | 11 | | 51 | | 105 | | 85 | | 21 | | 1 |
| | | | | | | 1 | | 13 | | 76 | | 219 | | 295 | | 161 | | 28 | | 1 |
| | | | | | 1 | | 15 | | 106 | | 396 | | 771 | | 721 | | 280 | | 36 | | 1 |
| | | | | 1 | | 17 | | 141 | | 650 | | 1681 | | 2331 | | 1582 | | 456 | | 45 | | 1 |
| | | | 1 | | 19 | | 181 | | 995 | | 3235 | | 6083 | | 6244 | | 3186 | | 705 | | 55 | | 1 |
| | | 1 | | 21 | | 226 | | 1445 | | 5685 | | 13663 | | 19348 | | 15156 | | 5985 | | 1045 | | 66 | | 1 |
| | 1 | | 23 | | 276 | | 2014 | | 9325 | | 27483 | | 50464 | | 55308 | | 33903 | | 10615 | | 1496 | | 78 | | 1 |
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A271942 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23
| 1 | 6 | 16 | 31 | 51 | 76 | 106 | 141 | 181 | 226 | 276
| 1 | 10 | 40 | 105 | 219 | 396 | 650 | 995 | 1445 | 2014
| 1 | 15 | 85 | 295 | 771 | 1681 | 3235 | 5685 | 9325
| 1 | 21 | 161 | 721 | 2331 | 6083 | 13663 | 27483
| 1 | 28 | 280 | 1582 | 6244 | 19348 | 50464
| 1 | 36 | 456 | 3186 | 15156 | 55308
| 1 | 45 | 705 | 5985 | 33903
| 1 | 55 | 1045 | 10615
| 1 | 66 | 1496
| 1 | 78
| 1
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A271942 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23
| | | 1 | 6 | 16 | 31 | 51 | 76 | 106 | 141 | 181 | 226 | 276
| | | | 1 | 10 | 40 | 105 | 219 | 396 | 650 | 995 | 1445 | 2014
| | | | | 1 | 15 | 85 | 295 | 771 | 1681 | 3235 | 5685 | 9325
| | | | | | 1 | 21 | 161 | 721 | 2331 | 6083 | 13663 | 27483
| | | | | | | 1 | 28 | 280 | 1582 | 6244 | 19348 | 50464
| | | | | | | | 1 | 36 | 456 | 3186 | 15156 | 55308
| | | | | | | | | 1 | 45 | 705 | 5985 | 33903
| | | | | | | | | | 1 | 55 | 1045 | 10615
| | | | | | | | | | | 1 | 66 | 1496
| | | | | | | | | | | | 1 | 78
| | | | | | | | | | | | | 1
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