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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 44 |
| 2 | 878 |
| 3 | -54472 |
| 4 | -5183540 |
| 5 | 2449744 |
| 6 | 27528715336 |
| 7 | 1195712499872 |
| 8 | -151266315784048 |
| 9 | -16776228493414720 |
| 10 | 702203805185457376 |
| 11 | 208389464888487862144 |
| 12 | 996888570345112992448 |
| 13 | -2601849549129056926112512 |
| 14 | -128192585558205188847080320 |
| 15 | 32898121757138562880306993664 |
[1,44,878,-54472,-5183540,2449744,27528715336, 1195712499872,-151266315784048,-16776228493414720, 702203805185457376,208389464888487862144, 996888570345112992448,-2601849549129056926112512, -128192585558205188847080320, 32898121757138562880306993664] |