Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 25 |
5 | 117 |
6 | 601 |
7 | 3509 |
8 | 22457 |
9 | 153141 |
10 | 1105561 |
11 | 8453557 |
12 | 68339833 |
13 | 581495605 |
14 | 5184047961 |
15 | 48259748533 |
16 | 468040609593 |
17 | 4719817792565 |
18 | 49396003390489 |
19 | 535526127566773 |
20 | 6004124908829177 |
21 | 69509047405180213 |
22 | 829801009239621849 |
23 | 10202835010223731893 |
[0,1,1,5,25,117,601,3509,22457,153141,1105561, 8453557,68339833,581495605,5184047961,48259748533, 468040609593,4719817792565,49396003390489, 535526127566773,6004124908829177, 69509047405180213,829801009239621849, 10202835010223731893] |