A091869 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 2 | | 2 | | 1 |
| | | | | | | | | 4 | | 6 | | 3 | | 1 |
| | | | | | | | 9 | | 16 | | 12 | | 4 | | 1 |
| | | | | | | 21 | | 45 | | 40 | | 20 | | 5 | | 1 |
| | | | | | 51 | | 126 | | 135 | | 80 | | 30 | | 6 | | 1 |
| | | | | 127 | | 357 | | 441 | | 315 | | 140 | | 42 | | 7 | | 1 |
| | | | 323 | | 1016 | | 1428 | | 1176 | | 630 | | 224 | | 56 | | 8 | | 1 |
| | | 835 | | 2907 | | 4572 | | 4284 | | 2646 | | 1134 | | 336 | | 72 | | 9 | | 1 |
| | 2188 | | 8350 | | 14535 | | 15240 | | 10710 | | 5292 | | 1890 | | 480 | | 90 | | 10 | | 1 |
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A091869 as a square array
1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 | 2188
| 1 | 2 | 6 | 16 | 45 | 126 | 357 | 1016 | 2907 | 8350
| 1 | 3 | 12 | 40 | 135 | 441 | 1428 | 4572 | 14535
| 1 | 4 | 20 | 80 | 315 | 1176 | 4284 | 15240
| 1 | 5 | 30 | 140 | 630 | 2646 | 10710
| 1 | 6 | 42 | 224 | 1134 | 5292
| 1 | 7 | 56 | 336 | 1890
| 1 | 8 | 72 | 480
| 1 | 9 | 90
| 1 | 10
| 1
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A091869 as an upper right triangle
1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 | 2188
| | 1 | 2 | 6 | 16 | 45 | 126 | 357 | 1016 | 2907 | 8350
| | | 1 | 3 | 12 | 40 | 135 | 441 | 1428 | 4572 | 14535
| | | | 1 | 4 | 20 | 80 | 315 | 1176 | 4284 | 15240
| | | | | 1 | 5 | 30 | 140 | 630 | 2646 | 10710
| | | | | | 1 | 6 | 42 | 224 | 1134 | 5292
| | | | | | | 1 | 7 | 56 | 336 | 1890
| | | | | | | | 1 | 8 | 72 | 480
| | | | | | | | | 1 | 9 | 90
| | | | | | | | | | 1 | 10
| | | | | | | | | | | 1
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|