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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 96 |
| 4 | 28672 |
| 5 | 31457280 |
| 6 | 133143986176 |
| 7 | 2216615441596416 |
| 8 | 146421031085069565952 |
| 9 | 38534510500216304943759360 |
| 10 | 40485591044789076510300958621696 |
[1,1,96,28672,31457280,133143986176, 2216615441596416,146421031085069565952, 38534510500216304943759360, 40485591044789076510300958621696] |