n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 10 |
6 | 46 |
7 | 166 |
8 | 504 |
9 | 1425 |
10 | 4256 |
11 | 14594 |
12 | 55783 |
13 | 220903 |
14 | 873199 |
15 | 3436817 |
16 | 13569556 |
17 | 53929244 |
18 | 215352055 |
19 | 861477251 |
20 | 3446980935 |
21 | 13792641374 |
22 | 55203566064 |
23 | 221112089602 |
24 | 887538377345 |
25 | 3580304912835 |
26 | 14573568107348 |
[1,1,1,1,2,10,46,166,504,1425,4256,14594,55783, 220903,873199,3436817,13569556,53929244,215352055, 861477251,3446980935,13792641374,55203566064, 221112089602,887538377345,3580304912835, 14573568107348] |