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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 1 |
| 3 | 47 |
| 4 | -1343 |
| 5 | 8671 |
| 6 | 2436545 |
| 7 | -249528945 |
| 8 | 10176663169 |
| 9 | 1606374108095 |
| 10 | -482969577637247 |
| 11 | 59264468409177327 |
| 12 | 4209524591120115521 |
| 13 | -4541227341778149686881 |
| 14 | 1235175100383899185304129 |
[1,-1,1,47,-1343,8671,2436545,-249528945, 10176663169,1606374108095,-482969577637247, 59264468409177327,4209524591120115521, -4541227341778149686881,1235175100383899185304129] |