Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 60 |
4 | 262 |
5 | 1372 |
6 | 7044 |
7 | 32760 |
8 | 153670 |
9 | 789676 |
10 | 3659820 |
11 | 17109320 |
12 | 83073180 |
13 | 381273240 |
14 | 1786996424 |
15 | 8604391920 |
16 | 38832248902 |
17 | 179714213580 |
18 | 845485079580 |
19 | 3834271942440 |
20 | 17666638985652 |
21 | 81920437065288 |
22 | 370224975781560 |
23 | 1685489994025360 |
[1,2,10,60,262,1372,7044,32760,153670,789676, 3659820,17109320,83073180,381273240,1786996424, 8604391920,38832248902,179714213580,845485079580, 3834271942440,17666638985652,81920437065288, 370224975781560,1685489994025360] |