Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 1 |
7 | 2 |
8 | 6 |
9 | 6 |
10 | 22 |
11 | 80 |
12 | 504 |
13 | 840 |
14 | 6048 |
15 | 3888 |
16 | 37524 |
17 | 72976 |
18 | 961776 |
19 | 661016 |
20 | 11533030 |
21 | 7544366 |
22 | 133552142 |
23 | 208815294 |
24 | 5469236592 |
25 | 6429567323 |
26 | 153819905698 |
27 | 182409170334 |
28 | 4874589558919 |
29 | 7508950009102 |
30 | 209534365631599 |
[0,0,0,0,1,1,2,6,6,22,80,504,840,6048,3888,37524, 72976,961776,661016,11533030,7544366,133552142, 208815294,5469236592,6429567323,153819905698, 182409170334,4874589558919,7508950009102, 209534365631599] |