Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 28 |
4 | 272 |
5 | 3384 |
6 | 51300 |
7 | 917064 |
8 | 18884672 |
9 | 440168832 |
10 | 11454902500 |
11 | 329208395264 |
12 | 10355322975120 |
13 | 353851897861760 |
14 | 13052503620917124 |
15 | 516917167506777600 |
16 | 21875427250996723968 |
17 | 985164766018898243584 |
18 | 47043119138733155306052 |
19 | 2374168079889664129576960 |
[0,1,4,28,272,3384,51300,917064,18884672, 440168832,11454902500,329208395264,10355322975120, 353851897861760,13052503620917124, 516917167506777600,21875427250996723968, 985164766018898243584,47043119138733155306052, 2374168079889664129576960] |