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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -7 |
| 2 | -228 |
| 3 | 9919 |
| 4 | 271092 |
| 5 | -9896047 |
| 6 | -793410588 |
| 7 | 162353282063 |
| 8 | 4327148631732 |
| 9 | -284644302814417 |
| 10 | -37920857785409148 |
| 11 | 6097687452093027469 |
| 12 | 487390270799428649172 |
| 13 | -46311114112466843820187 |
| 14 | -8637180811805224479298908 |
| 15 | 7575623036392221753002975551 |
[1,-7,-228,9919,271092,-9896047,-793410588, 162353282063,4327148631732,-284644302814417, -37920857785409148,6097687452093027469, 487390270799428649172,-46311114112466843820187, -8637180811805224479298908, 7575623036392221753002975551] |