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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 445 |
| 4 | 38945 |
| 5 | 61129245 |
| 6 | 94304065705 |
| 7 | 2610924486436445 |
| 8 | 71050577480317387425 |
[1,5,445,38945,61129245,94304065705, 2610924486436445,71050577480317387425] |