Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 20 |
4 | 125 |
5 | 2828 |
6 | 42012 |
7 | 2170819 |
8 | 161247816 |
9 | 20536604982 |
10 | 5567500327979 |
[1,7,20,125,2828,42012,2170819,161247816, 20536604982,5567500327979] |