n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 51 |
5 | 187 |
6 | 718 |
7 | 2844 |
8 | 11530 |
9 | 47612 |
10 | 199576 |
11 | 847013 |
12 | 3632468 |
13 | 15717041 |
14 | 68527255 |
15 | 300780438 |
16 | 1327939406 |
17 | 5893299392 |
18 | 26275243626 |
19 | 117635107818 |
20 | 528631769323 |
21 | 2383660351991 |
22 | 10781500113896 |
23 | 48903885040638 |
24 | 222400899237943 |
25 | 1013841791472632 |
[1,2,5,15,51,187,718,2844,11530,47612,199576, 847013,3632468,15717041,68527255,300780438, 1327939406,5893299392,26275243626,117635107818, 528631769323,2383660351991,10781500113896, 48903885040638,222400899237943,1013841791472632] |