| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 32 |
| 3 | 7776 |
| 4 | 7962624 |
| 5 | 24883200000 |
| 6 | 193491763200000 |
| 7 | 3252016064102400000 |
| 8 | 106562062388507443200000 |
| 9 | 6292383221978976013516800000 |
| 10 | 629238322197897601351680000000000 |
| 11 | 101339461028293606595289415680000000000 |
| 12 | 25216500766592354716319055882485760000000000 |
[1,1,32,7776,7962624,24883200000,193491763200000, 3252016064102400000,106562062388507443200000, 6292383221978976013516800000, 629238322197897601351680000000000, 101339461028293606595289415680000000000, 25216500766592354716319055882485760000000000] |