Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 19 |
4 | 68 |
5 | 255 |
6 | 984 |
7 | 3929 |
8 | 16013 |
9 | 66253 |
10 | 278482 |
11 | 1183947 |
12 | 5079517 |
13 | 21992997 |
14 | 95913334 |
15 | 420824859 |
16 | 1857477019 |
17 | 8239560040 |
18 | 36707294405 |
19 | 164224110552 |
20 | 737390796048 |
21 | 3321642113284 |
22 | 15009789841105 |
23 | 68013861083631 |
24 | 308958608029480 |
25 | 1406890127444539 |
26 | 6420448495277942 |
27 | 29358341405419166 |
[1,2,6,19,68,255,984,3929,16013,66253,278482, 1183947,5079517,21992997,95913334,420824859, 1857477019,8239560040,36707294405,164224110552, 737390796048,3321642113284,15009789841105, 68013861083631,308958608029480,1406890127444539, 6420448495277942,29358341405419166] |