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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -4 |
| 3 | -7 |
| 4 | 1003 |
| 5 | 64836 |
| 6 | 3350349 |
| 7 | 104475395 |
| 8 | -12291888052 |
| 9 | -4268687337603 |
| 10 | -877769324284177 |
| 11 | -139938933307889412 |
| 12 | -9581950082738688167 |
| 13 | 6333750977985105075527 |
| 14 | 4837035706491587870342140 |
| 15 | 2439859866050865745230242689 |
| 16 | 1033093869484852949078289394195 |
[1,-1,-4,-7,1003,64836,3350349,104475395, -12291888052,-4268687337603,-877769324284177, -139938933307889412,-9581950082738688167, 6333750977985105075527,4837035706491587870342140, 2439859866050865745230242689, 1033093869484852949078289394195] |