Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 2 |
2 | 15 |
3 | 56 |
4 | 223 |
5 | 762 |
6 | 2607 |
7 | 8500 |
8 | 27411 |
9 | 86622 |
10 | 270955 |
11 | 838224 |
12 | 2573015 |
13 | 7841538 |
14 | 23759463 |
15 | 71619436 |
16 | 214933915 |
17 | 642504870 |
18 | 1914023267 |
19 | 5684288136 |
20 | 16834582623 |
21 | 49732758858 |
22 | 146587890015 |
23 | 431177727396 |
24 | 1265883329827 |
25 | 3710027613934 |
[2,15,56,223,762,2607,8500,27411,86622,270955, 838224,2573015,7841538,23759463,71619436, 214933915,642504870,1914023267,5684288136, 16834582623,49732758858,146587890015,431177727396, 1265883329827,3710027613934] |