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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 24 |
| 2 | 393 |
| 3 | 5536 |
| 4 | 72513 |
| 5 | 914088 |
| 6 | 11282041 |
| 7 | 137597232 |
| 8 | 1666743345 |
| 9 | 20110305592 |
| 10 | 242090763369 |
| 11 | 2910464426688 |
| 12 | 34963222353697 |
| 13 | 419822302356936 |
| 14 | 5039713424985177 |
| 15 | 60489483108391504 |
| 16 | 725964257087306769 |
[1,24,393,5536,72513,914088,11282041,137597232, 1666743345,20110305592,242090763369,2910464426688, 34963222353697,419822302356936,5039713424985177, 60489483108391504,725964257087306769] |