n | a(n) |
---|---|
1 | 1 |
2 | -20 |
3 | 140 |
4 | 200 |
5 | -67600 |
6 | 3983200 |
7 | -228488000 |
8 | 14375920000 |
9 | -1002261520000 |
10 | 74864404160000 |
11 | -5398716356800000 |
12 | 221997813232000000 |
13 | 54286859023072000000 |
14 | -27326116497867200000000 |
15 | 9481971502321385600000000 |
16 | -3155347494162485190400000000 |
[1,-20,140,200,-67600,3983200,-228488000, 14375920000,-1002261520000,74864404160000, -5398716356800000,221997813232000000, 54286859023072000000,-27326116497867200000000, 9481971502321385600000000, -3155347494162485190400000000] |