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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 45 |
| 4 | 35 |
| 5 | 4725 |
| 6 | 31185 |
| 7 | 945945 |
| 8 | 289575 |
| 9 | 310134825 |
| 10 | 3273645375 |
| 11 | 50414138775 |
| 12 | 5749711695 |
| 13 | 102776096548125 |
| 14 | 1494206326738125 |
| 15 | 92854250304440625 |
| 16 | 191898783962510625 |
| 17 | 107655217802968460625 |
[1,1,3,45,35,4725,31185,945945,289575,310134825, 3273645375,50414138775,5749711695,102776096548125, 1494206326738125,92854250304440625, 191898783962510625,107655217802968460625] |