A146990 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 4 | | 1 |
| | | | | | | 1 | | 12 | | 12 | | 1 |
| | | | | | 1 | | 68 | | 134 | | 68 | | 1 |
| | | | | 1 | | 630 | | 1885 | | 1885 | | 630 | | 1 |
| | | | 1 | | 7782 | | 31119 | | 46676 | | 31119 | | 7782 | | 1 |
| | | 1 | | 117656 | | 588266 | | 1176525 | | 1176525 | | 588266 | | 117656 | | 1 |
| | 1 | | 2097160 | | 12582940 | | 31457336 | | 41943110 | | 31457336 | | 12582940 | | 2097160 | | 1 |
|
A146990 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 12 | 68 | 630 | 7782 | 117656 | 2097160
| | 1 | 12 | 134 | 1885 | 31119 | 588266 | 12582940
| | 1 | 68 | 1885 | 46676 | 1176525 | 31457336
| | 1 | 630 | 31119 | 1176525 | 41943110
| | 1 | 7782 | 588266 | 31457336
| | 1 | 117656 | 12582940
| | 1 | 2097160
| | 1
|
A146990 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 12 | 68 | 630 | 7782 | 117656 | 2097160
| | | 1 | 12 | 134 | 1885 | 31119 | 588266 | 12582940
| | | | 1 | 68 | 1885 | 46676 | 1176525 | 31457336
| | | | | 1 | 630 | 31119 | 1176525 | 41943110
| | | | | | 1 | 7782 | 588266 | 31457336
| | | | | | | 1 | 117656 | 12582940
| | | | | | | | 1 | 2097160
| | | | | | | | | 1
|
|
