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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 128 |
| 3 | 1988 |
| 4 | 30897 |
| 5 | 480953 |
| 6 | 7486281 |
| 7 | 116517744 |
| 8 | 1813509273 |
| 9 | 28226012078 |
| 10 | 439318146284 |
| 11 | 6837678112091 |
| 12 | 106423655020443 |
| 13 | 1656409429611799 |
| 14 | 25780849141739720 |
| 15 | 401260805513420875 |
| 16 | 6245342547417157374 |
[8,128,1988,30897,480953,7486281,116517744, 1813509273,28226012078,439318146284,6837678112091, 106423655020443,1656409429611799, 25780849141739720,401260805513420875, 6245342547417157374] |