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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -3 |
| 2 | -3 |
| 3 | 69 |
| 4 | 285 |
| 5 | -6123 |
| 6 | -56883 |
| 7 | 1103109 |
| 8 | 19251645 |
| 9 | -320851083 |
| 10 | -9828858963 |
| 11 | 130009042149 |
| 12 | 7019067151005 |
| 13 | -62927791491243 |
| 14 | -6646083378845043 |
| 15 | 24719268064533189 |
| 16 | 8013257547754474365 |
| 17 | 22024516916447897397 |
[1,-3,-3,69,285,-6123,-56883,1103109,19251645, -320851083,-9828858963,130009042149,7019067151005, -62927791491243,-6646083378845043, 24719268064533189,8013257547754474365, 22024516916447897397] |