Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 3 |
2 | 17 |
3 | 86 |
4 | 430 |
5 | 2153 |
6 | 10767 |
7 | 53836 |
8 | 269180 |
9 | 1345903 |
10 | 6729517 |
11 | 33647586 |
12 | 168237930 |
13 | 841189653 |
14 | 4205948267 |
15 | 21029741336 |
16 | 105148706680 |
17 | 525743533403 |
18 | 2628717667017 |
19 | 13143588335086 |
20 | 65717941675430 |
21 | 328589708377153 |
[3,17,86,430,2153,10767,53836,269180,1345903, 6729517,33647586,168237930,841189653,4205948267, 21029741336,105148706680,525743533403, 2628717667017,13143588335086,65717941675430, 328589708377153] |