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 | 7 |
4 | 24 |
5 | 86 |
6 | 330 |
7 | 1311 |
8 | 5326 |
9 | 22070 |
10 | 92940 |
11 | 396466 |
12 | 1709610 |
13 | 7440200 |
14 | 32636590 |
15 | 144146831 |
16 | 640500188 |
17 | 2861175670 |
18 | 12841853052 |
19 | 57883546774 |
20 | 261905659756 |
21 | 1189161029092 |
22 | 5416356944248 |
23 | 24741552146026 |
24 | 113317361529586 |
25 | 520265301736892 |
26 | 2394041095608960 |
27 | 11039387236631796 |
[1,1,2,7,24,86,330,1311,5326,22070,92940,396466, 1709610,7440200,32636590,144146831,640500188, 2861175670,12841853052,57883546774,261905659756, 1189161029092,5416356944248,24741552146026, 113317361529586,520265301736892,2394041095608960, 11039387236631796] |