Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 28 |
4 | 272 |
5 | 3368 |
6 | 50768 |
7 | 902397 |
8 | 18481408 |
9 | 428556075 |
10 | 11099001600 |
11 | 317544062217 |
12 | 9946366838784 |
13 | 338537433281448 |
14 | 12441407233436672 |
15 | 491002325860132371 |
16 | 20710640842719301632 |
17 | 929821866165431838038 |
18 | 44270378887441746923520 |
[1,1,4,28,272,3368,50768,902397,18481408, 428556075,11099001600,317544062217,9946366838784, 338537433281448,12441407233436672, 491002325860132371,20710640842719301632, 929821866165431838038,44270378887441746923520] |