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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 586 |
| 4 | 63744 |
| 5 | 27133338 |
| 6 | 47301712998 |
| 7 | 319646954776850 |
| 8 | 8418146420087467712 |
| 9 | 876192348419528567402450 |
[1,14,586,63744,27133338,47301712998, 319646954776850,8418146420087467712, 876192348419528567402450] |