Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 21 |
4 | 45 |
5 | 285 |
6 | 765 |
7 | 27645 |
8 | 196605 |
9 | 41067645 |
10 | 72787965 |
11 | 250871805 |
12 | 4295098365 |
13 | 12884901885 |
14 | 23307153405 |
15 | 172130669565 |
16 | 1766029428523005 |
17 | 20978888016396285 |
[2,5,21,45,285,765,27645,196605,41067645,72787965, 250871805,4295098365,12884901885,23307153405, 172130669565,1766029428523005,20978888016396285] |