n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | -1 |
3 | 20 |
4 | -54 |
5 | 932 |
6 | -5670 |
7 | 99648 |
8 | -1005704 |
9 | 19127984 |
10 | -273119400 |
11 | 5764554528 |
12 | -106046677968 |
13 | 2504052726944 |
14 | -55986392252336 |
15 | 1478337150849408 |
16 | -38674242587249280 |
17 | 1136792156499528448 |
[0,2,-1,20,-54,932,-5670,99648,-1005704,19127984, -273119400,5764554528,-106046677968,2504052726944, -55986392252336,1478337150849408, -38674242587249280,1136792156499528448] |