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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -3 |
| 3 | 19 |
| 4 | 497 |
| 5 | -1899 |
| 6 | -489491 |
| 7 | -15433676 |
| 8 | 618450881 |
| 9 | 120846851155 |
| 10 | 7012261819901 |
| 11 | -467816186167659 |
| 12 | -175527285590430863 |
| 13 | -20961845760818684812 |
| 14 | 568194037748383908653 |
| 15 | 898095630359015975379151 |
| 16 | 220433074470274983356464897 |
| 17 | 16144974747716546214909454181 |
[1,0,-3,19,497,-1899,-489491,-15433676,618450881, 120846851155,7012261819901,-467816186167659, -175527285590430863,-20961845760818684812, 568194037748383908653,898095630359015975379151, 220433074470274983356464897, 16144974747716546214909454181] |