A109281 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 5 | | 2 | | 1 |
| | | | | | | | 35 | | 9 | | 3 | | 1 |
| | | | | | | 309 | | 56 | | 14 | | 4 | | 1 |
| | | | | | 3287 | | 443 | | 84 | | 20 | | 5 | | 1 |
| | | | | 41005 | | 4298 | | 623 | | 120 | | 27 | | 6 | | 1 |
| | | | 588487 | | 49937 | | 5629 | | 859 | | 165 | | 35 | | 7 | | 1 |
| | | 9571125 | | 680700 | | 61300 | | 7360 | | 1162 | | 220 | | 44 | | 8 | | 1 |
| | 174230863 | | 10683103 | | 793402 | | 75714 | | 9584 | | 1544 | | 286 | | 54 | | 9 | | 1 |
|
A109281 as a square array
| 1 | 1 | 5 | 35 | 309 | 3287 | 41005 | 588487 | 9571125 | 174230863
| | 1 | 2 | 9 | 56 | 443 | 4298 | 49937 | 680700 | 10683103
| | 1 | 3 | 14 | 84 | 623 | 5629 | 61300 | 793402
| | 1 | 4 | 20 | 120 | 859 | 7360 | 75714
| | 1 | 5 | 27 | 165 | 1162 | 9584
| | 1 | 6 | 35 | 220 | 1544
| | 1 | 7 | 44 | 286
| | 1 | 8 | 54
| | 1 | 9
| | 1
|
A109281 as an upper right triangle
| 1 | 1 | 5 | 35 | 309 | 3287 | 41005 | 588487 | 9571125 | 174230863
| | 1 | 2 | 9 | 56 | 443 | 4298 | 49937 | 680700 | 10683103
| | | 1 | 3 | 14 | 84 | 623 | 5629 | 61300 | 793402
| | | | 1 | 4 | 20 | 120 | 859 | 7360 | 75714
| | | | | 1 | 5 | 27 | 165 | 1162 | 9584
| | | | | | 1 | 6 | 35 | 220 | 1544
| | | | | | | 1 | 7 | 44 | 286
| | | | | | | | 1 | 8 | 54
| | | | | | | | | 1 | 9
| | | | | | | | | | 1
|
|
