n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | -1 |
3 | -4 |
4 | 18 |
5 | 138 |
6 | -1425 |
7 | -7368 |
8 | 207340 |
9 | 481578 |
10 | -49899645 |
11 | 122677012 |
12 | 17081066310 |
13 | -160273109518 |
14 | -7677995678717 |
15 | 153514412519392 |
16 | 4141750812789720 |
17 | -158348457721397742 |
18 | -2343499454063177433 |
[0,2,-1,-4,18,138,-1425,-7368,207340,481578, -49899645,122677012,17081066310,-160273109518, -7677995678717,153514412519392,4141750812789720, -158348457721397742,-2343499454063177433] |