n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 3 |
3 | -7 |
4 | 15 |
5 | -26 |
6 | 15 |
7 | 153 |
8 | -1049 |
9 | 4790 |
10 | -18522 |
11 | 64481 |
12 | -206181 |
13 | 606384 |
14 | -1615121 |
15 | 3715993 |
16 | -6289929 |
17 | 550850 |
18 | 61250694 |
19 | -382787092 |
20 | 1726745790 |
21 | -6691501530 |
22 | 23413714107 |
23 | -75179994017 |
24 | 221304346963 |
25 | -586004040651 |
26 | 1318720868416 |
27 | -2044320913276 |
28 | -1137686341077 |
29 | 28530838758784 |
30 | -165361803129585 |
[1,-1,3,-7,15,-26,15,153,-1049,4790,-18522,64481, -206181,606384,-1615121,3715993,-6289929,550850, 61250694,-382787092,1726745790,-6691501530, 23413714107,-75179994017,221304346963, -586004040651,1318720868416,-2044320913276, -1137686341077,28530838758784,-165361803129585] |