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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 22 |
| 3 | 1368 |
| 4 | 3746049 |
| 5 | 24572513476219 |
| 6 | 1010638758811403040864482767 |
| 7 | 32505975010777136404233006663619306132637239953154129437 |
[3,22,1368,3746049,24572513476219, 1010638758811403040864482767, 32505975010777136404233006663619306132637239953154\ 129437] |