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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 307 |
| 3 | 33191 |
| 4 | 321193 |
| 5 | 18889465931478650198741 |
| 6 | 401734511064747568885490523085290650630550748445707718725843 |
[5,307,33191,321193,18889465931478650198741, 40173451106474756888549052308529065063055074844570\ 7718725843] |