Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 15 |
4 | 70 |
5 | 314 |
6 | 1542 |
7 | 7428 |
8 | 36860 |
9 | 182911 |
10 | 917188 |
11 | 4612480 |
12 | 23323662 |
13 | 118273428 |
14 | 601762636 |
15 | 3069070533 |
16 | 15689123386 |
17 | 80356953555 |
18 | 412300910566 |
19 | 2118715503962 |
20 | 10902791722490 |
21 | 56175374185014 |
22 | 289766946825180 |
23 | 1496239506613985 |
24 | 7733302967423382 |
[1,1,4,15,70,314,1542,7428,36860,182911,917188, 4612480,23323662,118273428,601762636,3069070533, 15689123386,80356953555,412300910566, 2118715503962,10902791722490,56175374185014, 289766946825180,1496239506613985,7733302967423382] |