Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 9 |
9 | 15 |
10 | 29 |
11 | 57 |
12 | 137 |
13 | 413 |
14 | 1389 |
15 | 4485 |
16 | 15371 |
17 | 54209 |
18 | 224739 |
19 | 1032991 |
20 | 5497929 |
21 | 29140255 |
22 | 171761393 |
23 | 1058704295 |
24 | 7315438183 |
[1,1,1,1,1,1,1,9,15,29,57,137,413,1389,4485,15371, 54209,224739,1032991,5497929,29140255,171761393, 1058704295,7315438183] |