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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 2712 |
| 4 | 231522891 |
| 5 | 8756434117294432 |
| 6 | 249096838614525812698358775 |
| 7 | 8139061836900805521792918983553748370384 |
| 8 | 433260199304013169377314056431261105381859769023053142147 |
| 9 | 50588410365048062214208686025866207883991092439012208028251128999706257554156 |
[1,1,7,2712,231522891,8756434117294432, 249096838614525812698358775, 8139061836900805521792918983553748370384, 43326019930401316937731405643126110538185976902305\ 3142147, 50588410365048062214208686025866207883991092439012\ 208028251128999706257554156] |