A108290 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 2 |
| | | | | | | | 1 | | 9 | | 9 |
| | | | | | | 1 | | 34 | | 96 | | 64 |
| | | | | | 1 | | 125 | | 750 | | 1250 | | 625 |
| | | | | 1 | | 461 | | 5265 | | 16470 | | 19440 | | 7776 |
| | | | 1 | | 1715 | | 35329 | | 184877 | | 386561 | | 352947 | | 117649 |
| | | 1 | | 6434 | | 232288 | | 1913408 | | 6307840 | | 9863168 | | 7340032 | | 2097152 |
| | 1 | | 24309 | | 1513656 | | 18921924 | | 92365758 | | 220016574 |
|
A108290 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 2 | 9 | 34 | 125 | 461 | 1715 | 6434 | 24309
| 9 | 96 | 750 | 5265 | 35329 | 232288 | 1513656
| 64 | 1250 | 16470 | 184877 | 1913408 | 18921924
| 625 | 19440 | 386561 | 6307840 | 92365758
| 7776 | 352947 | 9863168 | 220016574
| 117649 | 7340032
| 2097152
|
A108290 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 2 | 9 | 34 | 125 | 461 | 1715 | 6434 | 24309
| | | 9 | 96 | 750 | 5265 | 35329 | 232288 | 1513656
| | | | 64 | 1250 | 16470 | 184877 | 1913408 | 18921924
| | | | | 625 | 19440 | 386561 | 6307840 | 92365758
| | | | | | 7776 | 352947 | 9863168 | 220016574
| | | | | | | 117649 | 7340032
| | | | | | | | 2097152
| | | | | | | |
|
|