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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 101505 |
| 4 | 259105757127 |
| 5 | 1356566605613854774200240267 |
| 6 | 1851197466245939272480116323530608949000567215 |
[1,3,101505,259105757127, 1356566605613854774200240267, 1851197466245939272480116323530608949000567215] |