Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 15 |
5 | 52 |
6 | 198 |
7 | 793 |
8 | 3255 |
9 | 13529 |
10 | 56696 |
11 | 239340 |
12 | 1017900 |
13 | 4361840 |
14 | 18828606 |
15 | 81833505 |
16 | 357865215 |
17 | 1573549667 |
18 | 6952392450 |
19 | 30848928525 |
20 | 137403484655 |
21 | 614104910096 |
22 | 2753200345000 |
23 | 12378494389660 |
24 | 55799811151140 |
25 | 252141767612812 |
26 | 1141894552992368 |
[1,1,2,5,15,52,198,793,3255,13529,56696,239340, 1017900,4361840,18828606,81833505,357865215, 1573549667,6952392450,30848928525,137403484655, 614104910096,2753200345000,12378494389660, 55799811151140,252141767612812,1141894552992368] |