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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 75 |
| 4 | 8949 |
| 5 | 119646723 |
| 6 | 15849841722437093 |
| 7 | 708657580163382065836292133774995 |
| 8 | 529026553215766321676623343348414600292754204772300344704877695232 |
[2,8,75,8949,119646723,15849841722437093, 708657580163382065836292133774995, 52902655321576632167662334334841460029275420477230\ 0344704877695232] |