n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | 2 |
4 | 3 |
5 | 14 |
6 | -55 |
7 | 62 |
8 | -637 |
9 | 338 |
10 | -3861 |
11 | 335312 |
12 | -4499803 |
13 | 43490108 |
14 | -246353731 |
15 | 2189950310 |
16 | -47336985225 |
17 | 1224524919590 |
18 | -21516426400621 |
19 | 346681988108648 |
20 | -4499477383730851 |
21 | 69294602646065900 |
22 | -1418045089870455795 |
23 | 45246859024830444566 |
[1,-1,-1,2,3,14,-55,62,-637,338,-3861,335312, -4499803,43490108,-246353731,2189950310, -47336985225,1224524919590,-21516426400621, 346681988108648,-4499477383730851, 69294602646065900,-1418045089870455795, 45246859024830444566] |