Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 18 |
4 | 70 |
5 | 292 |
6 | 1212 |
7 | 5028 |
8 | 20832 |
9 | 86360 |
10 | 358008 |
11 | 1484112 |
12 | 6152272 |
13 | 25503888 |
14 | 105724928 |
15 | 438276640 |
16 | 1816850528 |
17 | 7531649344 |
18 | 31222019264 |
19 | 129429085248 |
20 | 536540828672 |
21 | 2224199146368 |
22 | 9220289638272 |
23 | 38222180397312 |
24 | 158447850514688 |
[1,4,18,70,292,1212,5028,20832,86360,358008, 1484112,6152272,25503888,105724928,438276640, 1816850528,7531649344,31222019264,129429085248, 536540828672,2224199146368,9220289638272, 38222180397312,158447850514688] |