Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
2 | 4 |
3 | 26 |
4 | 122 |
5 | 572 |
6 | 2754 |
7 | 13372 |
8 | 65350 |
9 | 321314 |
10 | 1587646 |
11 | 7876706 |
12 | 39213336 |
13 | 195797006 |
14 | 980139194 |
15 | 4917428112 |
16 | 24719569686 |
17 | 124480093754 |
18 | 627818178180 |
19 | 3170837715984 |
[4,26,122,572,2754,13372,65350,321314,1587646, 7876706,39213336,195797006,980139194,4917428112, 24719569686,124480093754,627818178180, 3170837715984] |