Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 8 |
5 | 15 |
6 | 720 |
7 | 5040 |
8 | 13440 |
9 | 13440 |
10 | 3628800 |
11 | 532224 |
12 | 43545600 |
13 | 691891200 |
14 | 691891200 |
15 | 108972864000 |
16 | 1902071808000 |
17 | 118562476032000 |
18 | 6847458508800 |
19 | 24329020081766400 |
20 | 17888985354240000 |
21 | 1344498478202880000 |
[1,1,1,8,15,720,5040,13440,13440,3628800,532224, 43545600,691891200,691891200,108972864000, 1902071808000,118562476032000,6847458508800, 24329020081766400,17888985354240000, 1344498478202880000] |