n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | -4 |
3 | 15 |
4 | -60 |
5 | 268 |
6 | -1275 |
7 | 6322 |
8 | -32280 |
9 | 168525 |
10 | -895272 |
11 | 4823088 |
12 | -26284036 |
13 | 144623580 |
14 | -802297080 |
15 | 4482108215 |
16 | -25193038332 |
17 | 142365182220 |
18 | -808318895340 |
19 | 4608847319040 |
20 | -26378042959008 |
21 | 151485697164867 |
22 | -872650786462376 |
23 | 5041141102888080 |
[1,2,-4,15,-60,268,-1275,6322,-32280,168525, -895272,4823088,-26284036,144623580,-802297080, 4482108215,-25193038332,142365182220, -808318895340,4608847319040,-26378042959008, 151485697164867,-872650786462376,5041141102888080] |