n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 7 |
4 | 26 |
5 | 95 |
6 | 345 |
7 | 1252 |
8 | 4544 |
9 | 16493 |
10 | 59864 |
11 | 217286 |
12 | 788674 |
13 | 2862617 |
14 | 10390321 |
15 | 37713313 |
16 | 136886433 |
17 | 496850954 |
18 | 1803399103 |
19 | 6545722210 |
20 | 23758733815 |
21 | 86236081273 |
22 | 313007493212 |
23 | 1136110191472 |
24 | 4123691589365 |
25 | 14967590689568 |
[1,2,7,26,95,345,1252,4544,16493,59864,217286, 788674,2862617,10390321,37713313,136886433, 496850954,1803399103,6545722210,23758733815, 86236081273,313007493212,1136110191472, 4123691589365,14967590689568] |