n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | -4 |
3 | 56 |
4 | -1008 |
5 | 25632 |
6 | -833600 |
7 | 33067904 |
8 | -1548418816 |
9 | 83597525504 |
10 | -5112566055936 |
11 | 349330707068928 |
12 | -26374805535322112 |
13 | 2180554321981349888 |
14 | -195926186031705505792 |
15 | 19010400989418574020608 |
16 | -1980997069982960384409600 |
17 | 220651645970702249702326272 |
[1,2,-4,56,-1008,25632,-833600,33067904, -1548418816,83597525504,-5112566055936, 349330707068928,-26374805535322112, 2180554321981349888,-195926186031705505792, 19010400989418574020608, -1980997069982960384409600, 220651645970702249702326272] |