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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 84 |
| 3 | 2606 |
| 4 | 193664 |
| 5 | 33865634 |
| 6 | 13956665238 |
| 7 | 13574876544398 |
| 8 | 31191658416342676 |
| 9 | 169426507164530254382 |
| 10 | 2176592549084872196370726 |
| 11 | 66158464020552857153017287242 |
| 12 | 4759146677426447759184119036493678 |
[8,84,2606,193664,33865634,13956665238, 13574876544398,31191658416342676, 169426507164530254382,2176592549084872196370726, 66158464020552857153017287242, 4759146677426447759184119036493678] |