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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -4 |
| 2 | 350 |
| 3 | -11240 |
| 4 | 1461658 |
| 5 | -167279660 |
| 6 | 35689423926 |
| 7 | -8594866078032 |
| 8 | 2902777731046578 |
| 9 | -1163594305273709524 |
| 10 | 584328120817240344206 |
| 11 | -346295976826690961613880 |
| 12 | 244030359200524004600252746 |
[2,-4,350,-11240,1461658,-167279660,35689423926, -8594866078032,2902777731046578, -1163594305273709524,584328120817240344206, -346295976826690961613880, 244030359200524004600252746] |