Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 4 |
4 | 39 |
5 | 228 |
6 | 2400 |
7 | 23616 |
8 | 307692 |
9 | 4197408 |
10 | 67658769 |
11 | 1174316570 |
12 | 22916090131 |
13 | 482946085932 |
[1,0,2,4,39,228,2400,23616,307692,4197408, 67658769,1174316570,22916090131,482946085932] |