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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 15 |
| 4 | 225 |
| 5 | 50625 |
| 6 | 2562890625 |
| 7 | 6568408355712890625 |
| 8 | 43143988327398919500410556793212890625 |
| 9 | 1861403728794734215467410604755702820123364205073812627233564853668212890625 |
[3,5,15,225,50625,2562890625,6568408355712890625, 43143988327398919500410556793212890625, 18614037287947342154674106047557028201233642050738\ 12627233564853668212890625] |