Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | -3 |
4 | 32 |
5 | -150 |
6 | 1404 |
7 | -11340 |
8 | 120448 |
9 | -1319976 |
10 | 16600320 |
11 | -223664760 |
12 | 3300331704 |
13 | -52223268240 |
14 | 887583503520 |
15 | -16071609481200 |
16 | 309263446333440 |
17 | -6296705309543040 |
18 | 135262191966465600 |
19 | -3056359409652695040 |
20 | 72462969268541596800 |
[1,0,2,-3,32,-150,1404,-11340,120448,-1319976, 16600320,-223664760,3300331704,-52223268240, 887583503520,-16071609481200,309263446333440, -6296705309543040,135262191966465600, -3056359409652695040,72462969268541596800] |