Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 9 |
4 | 20 |
5 | 74 |
6 | 379 |
7 | 3003 |
8 | 38251 |
9 | 799417 |
10 | 26052840 |
11 | 1338355732 |
12 | 107392201905 |
[1,4,9,20,74,379,3003,38251,799417,26052840, 1338355732,107392201905] |