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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -2 |
| 3 | 11 |
| 4 | -74 |
| 5 | 477 |
| 6 | -804 |
| 7 | -84425 |
| 8 | 3315334 |
| 9 | -102211207 |
| 10 | 3005297956 |
| 11 | -88338323709 |
| 12 | 2627003399164 |
| 13 | -78764141488043 |
| 14 | 2341929797646648 |
| 15 | -66394419743289105 |
| 16 | 1609460569459689286 |
| 17 | -18001777147777896975 |
| 18 | -1625299659961386724524 |
| 19 | 196005371138608184827003 |
[1,1,-2,11,-74,477,-804,-84425,3315334,-102211207, 3005297956,-88338323709,2627003399164, -78764141488043,2341929797646648, -66394419743289105,1609460569459689286, -18001777147777896975,-1625299659961386724524, 196005371138608184827003] |