A259971 as a triangular array
| | | | | | | 1 |
| | | | | | | 1 | | 1 |
| | | | | | 2 | | 5 | | 3 |
| | | | | 10 | | 40 | | 51 | | 21 |
| | | | 122 | | 644 | | 1236 | | 1029 | | 315 |
| | | 3346 | | 21496 | | 54060 | | 66780 | | 40635 | | 9765 |
| | 196082 | | 1471460 | | 4527228 | | 7328580 | | 6596100 | | 3134565 | | 615195 |
|
A259971 as a square array
| 1 | 1 | 2 | 10 | 122 | 3346 | 196082
| | 1 | 5 | 40 | 644 | 21496 | 1471460
| | 3 | 51 | 1236 | 54060 | 4527228
| | 21 | 1029 | 66780 | 7328580
| | 315 | 40635 | 6596100
| | 9765 | 3134565
| | 615195
|
A259971 as an upper right triangle
| 1 | 1 | 2 | 10 | 122 | 3346 | 196082
| | 1 | 5 | 40 | 644 | 21496 | 1471460
| | | 3 | 51 | 1236 | 54060 | 4527228
| | | | 21 | 1029 | 66780 | 7328580
| | | | | 315 | 40635 | 6596100
| | | | | | 9765 | 3134565
| | | | | | | 615195
|
|
