Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 28 |
5 | 87 |
6 | 295 |
7 | 1025 |
8 | 3668 |
9 | 13505 |
10 | 50939 |
11 | 195811 |
12 | 765060 |
13 | 3032505 |
14 | 12164349 |
15 | 49338483 |
16 | 202003995 |
17 | 834137367 |
18 | 3470745959 |
19 | 14540711868 |
20 | 61299117863 |
21 | 259882257795 |
22 | 1107518408090 |
23 | 4742237074597 |
24 | 20394709933666 |
25 | 88065138323178 |
26 | 381695490302277 |
27 | 1660121541256698 |
28 | 7243858826868699 |
[1,2,4,10,28,87,295,1025,3668,13505,50939,195811, 765060,3032505,12164349,49338483,202003995, 834137367,3470745959,14540711868,61299117863, 259882257795,1107518408090,4742237074597, 20394709933666,88065138323178,381695490302277, 1660121541256698,7243858826868699] |