n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | -5 |
4 | 23 |
5 | -119 |
6 | 619 |
7 | -4759 |
8 | 48145 |
9 | -476657 |
10 | 4249961 |
11 | -48286061 |
12 | 691331431 |
13 | -9132207655 |
14 | 117900772963 |
15 | -2025161870159 |
16 | 37607411624609 |
17 | -628236985455329 |
18 | 10768798391659345 |
19 | -215626810984559317 |
20 | 4751529623277906871 |
21 | -105427459848063440471 |
[1,-1,1,-5,23,-119,619,-4759,48145,-476657, 4249961,-48286061,691331431,-9132207655, 117900772963,-2025161870159,37607411624609, -628236985455329,10768798391659345, -215626810984559317,4751529623277906871, -105427459848063440471] |