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A173884 as a triangular array
| 1 | |||||||||||||||||
| 1 | 1 | ||||||||||||||||
| 1 | 3 | 1 | |||||||||||||||
| 1 | 21 | 21 | 1 | ||||||||||||||
| 1 | 105 | 735 | 105 | 1 | |||||||||||||
| 1 | 465 | 16275 | 16275 | 465 | 1 | ||||||||||||
| 1 | 1953 | 302715 | 1513575 | 302715 | 1953 | 1 | |||||||||||
| 1 | 8001 | 5208651 | 115334415 | 115334415 | 5208651 | 8001 | 1 | ||||||||||
| 1 | 32385 | 86370795 | 8032483935 | 35572428855 | 8032483935 |
A173884 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 3 | 21 | 105 | 465 | 1953 | 8001 | 32385 | |
| 1 | 21 | 735 | 16275 | 302715 | 5208651 | 86370795 | ||
| 1 | 105 | 16275 | 1513575 | 115334415 | 8032483935 | |||
| 1 | 465 | 302715 | 115334415 | 35572428855 | ||||
| 1 | 1953 | 5208651 | 8032483935 | |||||
| 1 | 8001 | |||||||
| 1 | ||||||||
A173884 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 3 | 21 | 105 | 465 | 1953 | 8001 | 32385 | |
| 1 | 21 | 735 | 16275 | 302715 | 5208651 | 86370795 | ||
| 1 | 105 | 16275 | 1513575 | 115334415 | 8032483935 | |||
| 1 | 465 | 302715 | 115334415 | 35572428855 | ||||
| 1 | 1953 | 5208651 | 8032483935 | |||||
| 1 | 8001 | |||||||
| 1 | ||||||||