Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 19 |
4 | 69 |
5 | 260 |
6 | 1044 |
7 | 4291 |
8 | 18222 |
9 | 78661 |
10 | 346083 |
11 | 1541366 |
12 | 6949629 |
13 | 31624846 |
14 | 145147357 |
15 | 670888223 |
16 | 3120523813 |
17 | 14593863806 |
18 | 68582232449 |
19 | 323676827232 |
20 | 1533444023240 |
21 | 7289712158895 |
22 | 34760673073594 |
23 | 166216482275935 |
24 | 796809625131341 |
25 | 3828527888555432 |
26 | 18433960812625851 |
27 | 88928010579621446 |
[1,2,6,19,69,260,1044,4291,18222,78661,346083, 1541366,6949629,31624846,145147357,670888223, 3120523813,14593863806,68582232449,323676827232, 1533444023240,7289712158895,34760673073594, 166216482275935,796809625131341,3828527888555432, 18433960812625851,88928010579621446] |