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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -1 |
| 3 | -44 |
| 4 | -211 |
| 5 | 9136 |
| 6 | 118799 |
| 7 | -9894884 |
| 8 | -368001271 |
| 9 | 3949758496 |
| 10 | -1062959453221 |
| 11 | -352302017500124 |
| 12 | -54987975498787651 |
| 13 | -11177493084346370144 |
| 14 | -3145848334837840227961 |
| 15 | -988952736939184411495964 |
| 16 | -349477151478120199840810351 |
| 17 | -141758901275895434356815281984 |
[1,1,-1,-44,-211,9136,118799,-9894884,-368001271, 3949758496,-1062959453221,-352302017500124, -54987975498787651,-11177493084346370144, -3145848334837840227961,-988952736939184411495964, -349477151478120199840810351, -141758901275895434356815281984] |