Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 113 |
4 | 785 |
5 | 4755 |
6 | 26163 |
7 | 134164 |
8 | 651814 |
9 | 3035018 |
10 | 13657458 |
11 | 59769854 |
12 | 255628486 |
13 | 1072565093 |
14 | 4428689165 |
15 | 18041493575 |
16 | 72667375995 |
17 | 289905733805 |
18 | 1147339718965 |
19 | 4510476836460 |
20 | 17634066423470 |
21 | 68632042506612 |
[1,13,113,785,4755,26163,134164,651814,3035018, 13657458,59769854,255628486,1072565093,4428689165, 18041493575,72667375995,289905733805, 1147339718965,4510476836460,17634066423470, 68632042506612] |