Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 1 |
4 | -6 |
5 | 1 |
6 | 60 |
7 | 1 |
8 | -5040 |
9 | 20160 |
10 | 347760 |
11 | 1 |
12 | -59875200 |
13 | 1 |
14 | 6218372160 |
15 | 47221574400 |
16 | -1307674368000 |
17 | 1 |
18 | 177843714048000 |
19 | 1 |
20 | -126713646259200000 |
21 | 1219830034655232000 |
22 | 51090928092415411200 |
23 | 1 |
24 | -38778025108327464960000 |
25 | 25852016738884976640000 |
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