n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 43 |
6 | 143 |
7 | 511 |
8 | 1950 |
9 | 7903 |
10 | 33848 |
11 | 152529 |
12 | 720466 |
13 | 3555715 |
14 | 18285538 |
15 | 97752779 |
16 | 542107657 |
17 | 3112916651 |
18 | 18477588573 |
19 | 113203102619 |
20 | 714836382820 |
21 | 4646688247467 |
22 | 31057662848411 |
23 | 213217403924667 |
24 | 1502038027665181 |
[1,1,2,5,14,43,143,511,1950,7903,33848,152529, 720466,3555715,18285538,97752779,542107657, 3112916651,18477588573,113203102619,714836382820, 4646688247467,31057662848411,213217403924667, 1502038027665181] |