A157050 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 3 | | 3 |
| | | | | | | 20 | | 12 | | 20 |
| | | | | | 140 | | 75 | | 75 | | 140 |
| | | | | 1449 | | 588 | | 495 | | 588 | | 1449 |
| | | | 15939 | | 5859 | | 3780 | | 3780 | | 5859 | | 15939 |
| | | 226512 | | 68904 | | 38880 | | 30240 | | 38880 | | 68904 | | 226512 |
| | 3397680 | | 953667 | | 449955 | | 306180 | | 306180 | | 449955 | | 953667 | | 3397680 |
|
A157050 as a square array
1 | 3 | 20 | 140 | 1449 | 15939 | 226512 | 3397680
| 3 | 12 | 75 | 588 | 5859 | 68904 | 953667
| 20 | 75 | 495 | 3780 | 38880 | 449955
| 140 | 588 | 3780 | 30240 | 306180
| 1449 | 5859 | 38880 | 306180
| 15939 | 68904 | 449955
| 226512 | 953667
| 3397680
|
A157050 as an upper right triangle
1 | 3 | 20 | 140 | 1449 | 15939 | 226512 | 3397680
| | 3 | 12 | 75 | 588 | 5859 | 68904 | 953667
| | | 20 | 75 | 495 | 3780 | 38880 | 449955
| | | | 140 | 588 | 3780 | 30240 | 306180
| | | | | 1449 | 5859 | 38880 | 306180
| | | | | | 15939 | 68904 | 449955
| | | | | | | 226512 | 953667
| | | | | | | | 3397680
|
|