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| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 864 |
| 3 | 39780 |
| 4 | 872784 |
| 5 | 27173700 |
| 6 | 607177560 |
| 7 | 16686373301 |
| 8 | 377744379360 |
| 9 | 9905630920200 |
| 10 | 226933478643456 |
| 11 | 5799086239124115 |
| 12 | 134056928557346928 |
| 13 | 3374616113107842720 |
| 14 | 78526802473338034368 |
| 15 | 1957431423375160962922 |
[36,864,39780,872784,27173700,607177560, 16686373301,377744379360,9905630920200, 226933478643456,5799086239124115, 134056928557346928,3374616113107842720, 78526802473338034368,1957431423375160962922] |