Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 18 |
5 | 69 |
6 | 303 |
7 | 1357 |
8 | 6552 |
9 | 31961 |
10 | 163587 |
11 | 839710 |
12 | 4485686 |
13 | 23917300 |
14 | 131366017 |
15 | 722130351 |
16 | 4059017880 |
17 | 22809880116 |
18 | 130713878478 |
19 | 748596353814 |
20 | 4354695496124 |
21 | 25349532110660 |
22 | 149415724294027 |
23 | 881419904003486 |
24 | 5256588077063477 |
25 | 31377362011756061 |
[1,1,2,5,18,69,303,1357,6552,31961,163587,839710, 4485686,23917300,131366017,722130351,4059017880, 22809880116,130713878478,748596353814, 4354695496124,25349532110660,149415724294027, 881419904003486,5256588077063477, 31377362011756061] |