Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 3 |
5 | 30 |
6 | 105 |
7 | 315 |
8 | 2625 |
9 | 11340 |
10 | 57645 |
11 | 467775 |
12 | 2505195 |
13 | 17027010 |
14 | 142026885 |
15 | 922296375 |
16 | 7493911425 |
17 | 65886420600 |
18 | 503693415225 |
19 | 4625660914875 |
20 | 43369908657075 |
21 | 379618464975750 |
22 | 3824934458169825 |
23 | 38406952928819475 |
24 | 376103907454500225 |
[1,0,1,3,3,30,105,315,2625,11340,57645,467775, 2505195,17027010,142026885,922296375,7493911425, 65886420600,503693415225,4625660914875, 43369908657075,379618464975750,3824934458169825, 38406952928819475,376103907454500225] |