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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2592 |
| 2 | 1178592 |
| 3 | 210991104 |
| 4 | 20313269568 |
| 5 | 1227937318496 |
| 6 | 51231956738592 |
| 7 | 1573529195264832 |
| 8 | 37290864086825088 |
| 9 | 706860652066340000 |
| 10 | 11025804939524820576 |
| 11 | 144824300525588254848 |
| 12 | 1632702710704617728448 |
| 13 | 16053286305279454059744 |
| 14 | 139550179861109078470816 |
[1,2592,1178592,210991104,20313269568, 1227937318496,51231956738592,1573529195264832, 37290864086825088,706860652066340000, 11025804939524820576,144824300525588254848, 1632702710704617728448,16053286305279454059744, 139550179861109078470816] |