Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 9 |
3 | 31 |
4 | 107 |
5 | 501 |
6 | 2339 |
7 | 10303 |
8 | 44523 |
9 | 198695 |
10 | 888601 |
11 | 3941855 |
12 | 18017983 |
13 | 83483541 |
14 | 389450325 |
15 | 1838319253 |
16 | 8707491533 |
17 | 41316656737 |
18 | 196349474191 |
19 | 934444664373 |
20 | 4453775875859 |
21 | 21254863852755 |
22 | 101613183769703 |
23 | 486794625431383 |
[1,9,31,107,501,2339,10303,44523,198695,888601, 3941855,18017983,83483541,389450325,1838319253, 8707491533,41316656737,196349474191,934444664373, 4453775875859,21254863852755,101613183769703, 486794625431383] |