A225624 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 2 | | 0 |
| | | | | | | | | | | 3 | | 1 | | 0 |
| | | | | | | | | | 4 | | 5 | | 0 | | 0 |
| | | | | | | | | 5 | | 15 | | 3 | | 0 | | 0 |
| | | | | | | | 6 | | 35 | | 25 | | 1 | | 0 | | 0 |
| | | | | | | 7 | | 70 | | 117 | | 28 | | 0 | | 0 | | 0 |
| | | | | | 8 | | 126 | | 405 | | 271 | | 22 | | 0 | | 0 | | 0 |
| | | | | 9 | | 210 | | 1155 | | 1631 | | 483 | | 13 | | 0 | | 0 | | 0 |
| | | | 10 | | 330 | | 2871 | | 7359 | | 5126 | | 711 | | 5 | | 0 | | 0 | | 0 |
| | | 11 | | 495 | | 6435 | | 27223 | | 36526 | | 13482 | | 889 | | 1 | | 0 | | 0 | | 0 |
| | 12 | | 715 | | 13299 | | 86919 | | 199924 | | 151276 | | 30906 | | 962 | | 0 | | 0 | | 0 | | 0 |
|
A225624 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| 0 | 1 | 5 | 15 | 35 | 70 | 126 | 210 | 330 | 495 | 715
| 0 | 0 | 3 | 25 | 117 | 405 | 1155 | 2871 | 6435 | 13299
| 0 | 0 | 1 | 28 | 271 | 1631 | 7359 | 27223 | 86919
| 0 | 0 | 0 | 22 | 483 | 5126 | 36526 | 199924
| 0 | 0 | 0 | 13 | 711 | 13482 | 151276
| 0 | 0 | 0 | 5 | 889 | 30906
| 0 | 0 | 0 | 1 | 962
| 0 | 0 | 0 | 0
| 0 | 0 | 0
| 0 | 0
| 0
|
A225624 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | 0 | 1 | 5 | 15 | 35 | 70 | 126 | 210 | 330 | 495 | 715
| | | 0 | 0 | 3 | 25 | 117 | 405 | 1155 | 2871 | 6435 | 13299
| | | | 0 | 0 | 1 | 28 | 271 | 1631 | 7359 | 27223 | 86919
| | | | | 0 | 0 | 0 | 22 | 483 | 5126 | 36526 | 199924
| | | | | | 0 | 0 | 0 | 13 | 711 | 13482 | 151276
| | | | | | | 0 | 0 | 0 | 5 | 889 | 30906
| | | | | | | | 0 | 0 | 0 | 1 | 962
| | | | | | | | | 0 | 0 | 0 | 0
| | | | | | | | | | 0 | 0 | 0
| | | | | | | | | | | 0 | 0
| | | | | | | | | | | | 0
|
|