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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 17 |
| 3 | 364 |
| 4 | 14595 |
| 5 | 937776 |
| 6 | 88507276 |
| 7 | 11584785137 |
| 8 | 2017129470049 |
| 9 | 452573312572094 |
| 10 | 127585778625167901 |
| 11 | 44275881599081757633 |
| 12 | 18594652294164085489646 |
| 13 | 9315786786179883210141889 |
| 14 | 5499383628157822564248546214 |
| 15 | 3784760890972848935690646794792 |
[1,2,17,364,14595,937776,88507276,11584785137, 2017129470049,452573312572094,127585778625167901, 44275881599081757633,18594652294164085489646, 9315786786179883210141889, 5499383628157822564248546214, 3784760890972848935690646794792] |