Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 9 |
4 | 45 |
5 | 476 |
6 | 6933 |
7 | 199238 |
8 | 8764691 |
9 | 657200985 |
10 | 80295518797 |
11 | 16444907566268 |
12 | 5549422397331424 |
13 | 3112070848837147326 |
[1,1,9,45,476,6933,199238,8764691,657200985, 80295518797,16444907566268,5549422397331424, 3112070848837147326] |