Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 0 |
4 | 6 |
5 | 24 |
6 | 104 |
7 | 432 |
8 | 1950 |
9 | 8736 |
10 | 39298 |
11 | 177784 |
12 | 813748 |
13 | 3755048 |
14 | 17438400 |
15 | 81380192 |
16 | 381468750 |
17 | 1795133272 |
18 | 8477100632 |
19 | 40154790296 |
20 | 190735234220 |
21 | 908261625600 |
22 | 4334883167500 |
23 | 20732048658288 |
24 | 99341074218100 |
25 | 476837158203000 |
26 | 2292486335637500 |
[1,0,0,6,24,104,432,1950,8736,39298,177784,813748, 3755048,17438400,81380192,381468750,1795133272, 8477100632,40154790296,190735234220,908261625600, 4334883167500,20732048658288,99341074218100, 476837158203000,2292486335637500] |