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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -512 |
| 3 | -19171 |
| 4 | -111645 |
| 5 | 8255899 |
| 6 | 287477144 |
| 7 | 3248973702 |
| 8 | -56353404842 |
| 9 | -2946880278857 |
| 10 | -50078654012311 |
| 11 | -24091665240825 |
| 12 | 19437354184565824 |
| 13 | 486126425619195338 |
| 14 | 4607922953609319032 |
| 15 | -63107867988829247005 |
| 16 | -3101395214088243725145 |
[1,-1,-512,-19171,-111645,8255899,287477144, 3248973702,-56353404842,-2946880278857, -50078654012311,-24091665240825,19437354184565824, 486126425619195338,4607922953609319032, -63107867988829247005,-3101395214088243725145] |