A157404 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 1 | | 4 |
| | | | | | | 1 | | 12 | | 36 |
| | | | | | 1 | | 72 | | 144 | | 504 |
| | | | | 1 | | 280 | | 1800 | | 2520 | | 9576 |
| | | | 1 | | 1740 | | 22320 | | 37800 | | 57456 | | 229824 |
| | | 1 | | 8484 | | 182700 | | 864360 | | 1005480 | | 1608768 | | 6664896 |
| | 1 | | 57232 | | 2380896 | | 16546320 | | 26276544 | | 32175360 | | 53319168 | | 226606464 |
|
A157404 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 4 | 12 | 72 | 280 | 1740 | 8484 | 57232
| | 36 | 144 | 1800 | 22320 | 182700 | 2380896
| | 504 | 2520 | 37800 | 864360 | 16546320
| | 9576 | 57456 | 1005480 | 26276544
| | 229824 | 1608768 | 32175360
| | 6664896 | 53319168
| | 226606464
|
A157404 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 4 | 12 | 72 | 280 | 1740 | 8484 | 57232
| | | 36 | 144 | 1800 | 22320 | 182700 | 2380896
| | | | 504 | 2520 | 37800 | 864360 | 16546320
| | | | | 9576 | 57456 | 1005480 | 26276544
| | | | | | 229824 | 1608768 | 32175360
| | | | | | | 6664896 | 53319168
| | | | | | | | 226606464
|
|
