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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -12 |
| 3 | 88 |
| 4 | 4176 |
| 5 | -238912 |
| 6 | -1798976 |
| 7 | 1359954560 |
| 8 | -82934087424 |
| 9 | -12122717059072 |
| 10 | 3176281608315904 |
| 11 | -22431206333925376 |
| 12 | -144730933261140701184 |
| 13 | 27574419119401032040448 |
| 14 | 6996748839515967274205184 |
[1,0,-12,88,4176,-238912,-1798976,1359954560, -82934087424,-12122717059072,3176281608315904, -22431206333925376,-144730933261140701184, 27574419119401032040448,6996748839515967274205184] |