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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 37 |
| 3 | -6833 |
| 4 | 56377 |
| 5 | -439772603 |
| 6 | 27217772209 |
| 7 | -202070742359 |
| 8 | 80837575181815013 |
| 9 | -155957202651688954367 |
| 10 | 1770963292969902374951 |
| 11 | -16092436217742770647634507 |
| 12 | 2975968726866580246152132993 |
| 13 | -963399772945511487665759472653 |
| 14 | 3891037048609240492066339458106680163 |
[1,-1,37,-6833,56377,-439772603,27217772209, -202070742359,80837575181815013, -155957202651688954367,1770963292969902374951, -16092436217742770647634507, 2975968726866580246152132993, -963399772945511487665759472653, 3891037048609240492066339458106680163] |