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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 328 |
| 3 | 12668 |
| 4 | 492102 |
| 5 | 18852560 |
| 6 | 722442370 |
| 7 | 27665242848 |
| 8 | 1058237377670 |
[8,328,12668,492102,18852560,722442370, 27665242848,1058237377670] |