A288972 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 1 | | 1 |
| | | | | | | 1 | | 1 | | 2 | | 1 |
| | | | | | 1 | | 1 | | 9 | | 10 | | 1 |
| | | | | 1 | | 1 | | 44 | | 471 | | 92 | | 1 |
| | | | 1 | | 1 | | 225 | | 27076 | | 82899 | | 1348 | | 1 |
| | | 1 | | 1 | | 1182 | | 1713955 | | 102695344 | | 36913581 | | 28808 | | 1 |
| | 1 | | 1 | | 6321 | | 114751470 | | 147556480375 | | 1565018426896 | | 34878248649 | | 845800 | | 1 |
|
A288972 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 9 | 44 | 225 | 1182 | 6321
| 1 | 10 | 471 | 27076 | 1713955 | 114751470
| 1 | 92 | 82899 | 102695344 | 147556480375
| 1 | 1348 | 36913581 | 1565018426896
| 1 | 28808 | 34878248649
| 1 | 845800
| 1
|
A288972 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 1 | 2 | 9 | 44 | 225 | 1182 | 6321
| | | | 1 | 10 | 471 | 27076 | 1713955 | 114751470
| | | | | 1 | 92 | 82899 | 102695344 | 147556480375
| | | | | | 1 | 1348 | 36913581 | 1565018426896
| | | | | | | 1 | 28808 | 34878248649
| | | | | | | | 1 | 845800
| | | | | | | | | 1
|
|