A221308 as a triangular array
| | | | | | | | | | | 0 |
| | | | | | | | | | | 0 | | 0 |
| | | | | | | | | | 0 | | 5 | | 0 |
| | | | | | | | | 1 | | 10 | | 10 | | 1 |
| | | | | | | | 0 | | 31 | | 0 | | 31 | | 0 |
| | | | | | | 0 | | 90 | | 312 | | 312 | | 90 | | 0 |
| | | | | | 0 | | 259 | | 0 | | 3334 | | 0 | | 259 | | 0 |
| | | | | 1 | | 746 | | 10042 | | 38146 | | 38146 | | 10042 | | 746 | | 1 |
| | | | 0 | | 2150 | | 0 | | 431474 | | 0 | | 431474 | | 0 | | 2150 | | 0 |
| | | 0 | | 6192 | | 319226 | | 4855258 | | 19642342 | | 19642342 | | 4855258 | | 319226 | | 6192 | | 0 |
| | 0 | | 17831 | | 0 |
|
A221308 as a square array
0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0
| 0 | 5 | 10 | 31 | 90 | 259 | 746 | 2150 | 6192 | 17831
| 0 | 10 | 0 | 312 | 0 | 10042 | 0 | 319226 | 0
| 1 | 31 | 312 | 3334 | 38146 | 431474 | 4855258
| 0 | 90 | 0 | 38146 | 0 | 19642342
| 0 | 259 | 10042 | 431474 | 19642342
| 0 | 746 | 0 | 4855258
| 1 | 2150 | 319226
| 0 | 6192
| 0
|
A221308 as an upper right triangle
0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0
| | 0 | 5 | 10 | 31 | 90 | 259 | 746 | 2150 | 6192 | 17831
| | | 0 | 10 | 0 | 312 | 0 | 10042 | 0 | 319226 | 0
| | | | 1 | 31 | 312 | 3334 | 38146 | 431474 | 4855258
| | | | | 0 | 90 | 0 | 38146 | 0 | 19642342
| | | | | | 0 | 259 | 10042 | 431474 | 19642342
| | | | | | | 0 | 746 | 0 | 4855258
| | | | | | | | 1 | 2150 | 319226
| | | | | | | | | 0 | 6192
| | | | | | | | | | 0
| | | | | | | | | |
|
|