A181145 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 4 |
| | | | | | | | | 1 | | 1 | | 12 |
| | | | | | | | 27 | | 12 | | 1 | | 1 |
| | | | | | | 24 | | 134 | | 236 | | 134 | | 24 |
| | | | | | 1 | | 1 | | 40 | | 410 | | 1540 | | 2380 |
| | | | | 1540 | | 410 | | 40 | | 1 | | 1 | | 60 | | 975 |
| | | | 6260 | | 18386 | | 26216 | | 18386 | | 6260 | | 975 | | 60 | | 1 |
| | | 1 | | 84 | | 1981 | | 19320 | | 91441 | | 227052 | | 306495 | | 227052 | | 91441 |
| | 19320 | | 1981 | | 84 | | 1 | | 1 | | 112 | | 3612 | | 49672 |
|
A181145 as a square array
| 1 | 1 | 1 | 27 | 24 | 1 | 1540 | 6260 | 1 | 19320
| | 4 | 1 | 12 | 134 | 1 | 410 | 18386 | 84 | 1981
| | 12 | 1 | 236 | 40 | 40 | 26216 | 1981 | 84
| | 1 | 134 | 410 | 1 | 18386 | 19320 | 1
| | 24 | 1540 | 1 | 6260 | 91441 | 1
| | 2380 | 60 | 975 | 227052 | 112
| | 975 | 60 | 306495 | 3612
| | 1 | 227052 | 49672
| | 91441
|
A181145 as an upper right triangle
| 1 | 1 | 1 | 27 | 24 | 1 | 1540 | 6260 | 1 | 19320
| | 4 | 1 | 12 | 134 | 1 | 410 | 18386 | 84 | 1981
| | | 12 | 1 | 236 | 40 | 40 | 26216 | 1981 | 84
| | | | 1 | 134 | 410 | 1 | 18386 | 19320 | 1
| | | | | 24 | 1540 | 1 | 6260 | 91441 | 1
| | | | | | 2380 | 60 | 975 | 227052 | 112
| | | | | | | 975 | 60 | 306495 | 3612
| | | | | | | | 1 | 227052 | 49672
| | | | | | | | | 91441
| | | | | | | | |
|
|
