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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 17 |
| 3 | 459 |
| 4 | 16983 |
| 5 | 798201 |
| 6 | 45497457 |
| 7 | 3048329619 |
| 8 | 234721380663 |
| 9 | 20420760117681 |
| 10 | 1980813731415057 |
| 11 | 211947069261411099 |
| 12 | 24797807103585098583 |
| 13 | 3149321502155307520041 |
| 14 | 431457045795277130245617 |
| 15 | 63424185731905738146105699 |
| 16 | 9957597159909200888938594743 |
[1,17,459,16983,798201,45497457,3048329619, 234721380663,20420760117681,1980813731415057, 211947069261411099,24797807103585098583, 3149321502155307520041,431457045795277130245617, 63424185731905738146105699, 9957597159909200888938594743] |