n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 10 |
4 | 22 |
5 | 48 |
6 | 112 |
7 | 274 |
8 | 715 |
9 | 1982 |
10 | 5837 |
11 | 18180 |
12 | 59644 |
13 | 205296 |
14 | 739032 |
15 | 2775180 |
16 | 10846965 |
17 | 44039754 |
18 | 185391469 |
19 | 807776198 |
20 | 3637193474 |
21 | 16900721824 |
22 | 80939650552 |
23 | 399061251246 |
24 | 2023408865983 |
25 | 10540656630118 |
[1,2,5,10,22,48,112,274,715,1982,5837,18180,59644, 205296,739032,2775180,10846965,44039754,185391469, 807776198,3637193474,16900721824,80939650552, 399061251246,2023408865983,10540656630118] |