A109960 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 5 | | 1 |
| | | | | | | | | 1 | | 15 | | 9 | | 1 |
| | | | | | | | 1 | | 35 | | 45 | | 13 | | 1 |
| | | | | | | 1 | | 70 | | 165 | | 91 | | 17 | | 1 |
| | | | | | 1 | | 126 | | 495 | | 455 | | 153 | | 21 | | 1 |
| | | | | 1 | | 210 | | 1287 | | 1820 | | 969 | | 231 | | 25 | | 1 |
| | | | 1 | | 330 | | 3003 | | 6188 | | 4845 | | 1771 | | 325 | | 29 | | 1 |
| | | 1 | | 495 | | 6435 | | 18564 | | 20349 | | 10626 | | 2925 | | 435 | | 33 | | 1 |
| | 1 | | 715 | | 12870 | | 50388 | | 74613 | | 53130 |
|
A109960 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 5 | 15 | 35 | 70 | 126 | 210 | 330 | 495 | 715
| | 1 | 9 | 45 | 165 | 495 | 1287 | 3003 | 6435 | 12870
| | 1 | 13 | 91 | 455 | 1820 | 6188 | 18564 | 50388
| | 1 | 17 | 153 | 969 | 4845 | 20349 | 74613
| | 1 | 21 | 231 | 1771 | 10626 | 53130
| | 1 | 25 | 325 | 2925
| | 1 | 29 | 435
| | 1 | 33
| | 1
|
A109960 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 5 | 15 | 35 | 70 | 126 | 210 | 330 | 495 | 715
| | | 1 | 9 | 45 | 165 | 495 | 1287 | 3003 | 6435 | 12870
| | | | 1 | 13 | 91 | 455 | 1820 | 6188 | 18564 | 50388
| | | | | 1 | 17 | 153 | 969 | 4845 | 20349 | 74613
| | | | | | 1 | 21 | 231 | 1771 | 10626 | 53130
| | | | | | | 1 | 25 | 325 | 2925
| | | | | | | | 1 | 29 | 435
| | | | | | | | | 1 | 33
| | | | | | | | | | 1
| | | | | | | | | |
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