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| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | -2232 |
| 5 | 2730564 |
| 6 | -2425008768 |
| 7 | 1748443340826 |
| 8 | -1085940040502592 |
| 9 | 602376210735356376 |
| 10 | -305671359557586479616 |
| 11 | 144309502321265349235035 |
| 12 | -64175062238369552680712096 |
| 13 | 27135987216939727366492175940 |
| 14 | -10990160397215122310079248998656 |
[1,-2232,2730564,-2425008768,1748443340826, -1085940040502592,602376210735356376, -305671359557586479616,144309502321265349235035, -64175062238369552680712096, 27135987216939727366492175940, -10990160397215122310079248998656] |