A188646 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 13 | | 1 |
| | | | | | | 1 | | 181 | | 33 | | 1 |
| | | | | | 1 | | 2521 | | 1121 | | 61 | | 1 |
| | | | | 1 | | 35113 | | 38081 | | 3781 | | 97 | | 1 |
| | | | 1 | | 489061 | | 1293633 | | 234361 | | 9505 | | 141 | | 1 |
| | | 1 | | 6811741 | | 43945441 | | 14526601 | | 931393 | | 20021 | | 193 | | 1 |
| | 1 | | 94875313 | | 1492851361 | | 900414901 | | 91267009 | | 2842841 | | 37441 | | 253 | | 1 |
|
A188646 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 13 | 181 | 2521 | 35113 | 489061 | 6811741 | 94875313
| | 1 | 33 | 1121 | 38081 | 1293633 | 43945441 | 1492851361
| | 1 | 61 | 3781 | 234361 | 14526601 | 900414901
| | 1 | 97 | 9505 | 931393 | 91267009
| | 1 | 141 | 20021 | 2842841
| | 1 | 193 | 37441
| | 1 | 253
| | 1
|
A188646 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 13 | 181 | 2521 | 35113 | 489061 | 6811741 | 94875313
| | | 1 | 33 | 1121 | 38081 | 1293633 | 43945441 | 1492851361
| | | | 1 | 61 | 3781 | 234361 | 14526601 | 900414901
| | | | | 1 | 97 | 9505 | 931393 | 91267009
| | | | | | 1 | 141 | 20021 | 2842841
| | | | | | | 1 | 193 | 37441
| | | | | | | | 1 | 253
| | | | | | | | | 1
|
|
