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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 96 |
| 5 | 2880 |
| 6 | 34560 |
| 7 | 5806080 |
| 8 | 92897280 |
| 9 | 25082265600 |
| 10 | 2006581248000 |
| 11 | 794606174208000 |
| 12 | 19070548180992000 |
| 13 | 208250386136432640000 |
| 14 | 5831010811820113920000 |
| 15 | 4198327784510482022400000 |
| 16 | 3224315738504050193203200000 |
| 17 | 14799609239733590386802688000000 |
[1,2,12,96,2880,34560,5806080,92897280, 25082265600,2006581248000,794606174208000, 19070548180992000,208250386136432640000, 5831010811820113920000,4198327784510482022400000, 3224315738504050193203200000, 14799609239733590386802688000000] |