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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | -4 |
| 4 | -218 |
| 5 | 4377 |
| 6 | 189549 |
| 7 | -13317056 |
| 8 | -283835940 |
| 9 | 117015022505 |
| 10 | -5604964950389 |
| 11 | -1791024716075124 |
| 12 | 422751913131376674 |
| 13 | 8850160172208790801 |
| 14 | -30082452518043880807911 |
| 15 | 7173002090013176579439392 |
| 16 | 1556433498641034120823054072 |
[1,1,3,-4,-218,4377,189549,-13317056,-283835940, 117015022505,-5604964950389,-1791024716075124, 422751913131376674,8850160172208790801, -30082452518043880807911, 7173002090013176579439392, 1556433498641034120823054072] |