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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -17 |
| 2 | 131 |
| 3 | -442 |
| 4 | 24853 |
| 5 | -11050 |
| 6 | 612491 |
| 7 | -300118 |
| 8 | 25183573 |
| 9 | 970190 |
| 10 | -4932076745 |
| 11 | -1524611374 |
| 12 | 61514838247663 |
| 13 | 453106175990 |
| 14 | -50137550265523 |
| 15 | -196144583427910 |
| 16 | 2099358584443935221 |
| 17 | 109447606273742750 |
| 18 | -2062360122343151678743 |
| 19 | -76800667149793429726 |
[1,-17,131,-442,24853,-11050,612491,-300118, 25183573,970190,-4932076745,-1524611374, 61514838247663,453106175990,-50137550265523, -196144583427910,2099358584443935221, 109447606273742750,-2062360122343151678743, -76800667149793429726] |