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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 389 |
| 3 | 4366 |
| 4 | 175031 |
| 5 | 5558665 |
| 6 | 199153610 |
| 7 | 7165136807 |
| 8 | 259511787831 |
| 9 | 9448796539484 |
| 10 | 344252167371786 |
| 11 | 12555436461782784 |
| 12 | 458025124087582401 |
| 13 | 16711604849240776092 |
| 14 | 609784948993079811760 |
| 15 | 22250906791148467546626 |
[1,389,4366,175031,5558665,199153610,7165136807, 259511787831,9448796539484,344252167371786, 12555436461782784,458025124087582401, 16711604849240776092,609784948993079811760, 22250906791148467546626] |