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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 5 |
| 4 | 663569 |
| 5 | 3031329797 |
| 6 | 17479880417 |
| 7 | 1855418882807417 |
| 8 | 2640138520272677 |
[3,5,5,663569,3031329797,17479880417, 1855418882807417,2640138520272677] |