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| n | a(n) |
|---|---|
| 9 | 246675 |
| 10 | 52676325 |
| 11 | 6567205788 |
| 12 | 627427976340 |
| 13 | 51015901999920 |
| 14 | 3724987212716133 |
| 15 | 252083271295845990 |
| 16 | 16134288197281838562 |
| 17 | 990146359650754095405 |
| 18 | 58830559749207291469515 |
| 19 | 3408249740757631887365820 |
| 20 | 193544431133535679583811150 |
| 21 | 10816879949695374764949152976 |
[246675,52676325,6567205788,627427976340, 51015901999920,3724987212716133, 252083271295845990,16134288197281838562, 990146359650754095405,58830559749207291469515, 3408249740757631887365820, 193544431133535679583811150, 10816879949695374764949152976] |