n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 29 |
5 | 97 |
6 | 366 |
7 | 1534 |
8 | 7050 |
9 | 35167 |
10 | 188835 |
11 | 1084180 |
12 | 6618472 |
13 | 42756208 |
14 | 291120551 |
15 | 2081922515 |
16 | 15590248868 |
17 | 121920095674 |
18 | 993343650912 |
19 | 8414029179365 |
20 | 73953763887277 |
21 | 673316834487162 |
22 | 6340176007793060 |
23 | 61657373569634586 |
24 | 618445940056365121 |
[1,2,4,10,29,97,366,1534,7050,35167,188835, 1084180,6618472,42756208,291120551,2081922515, 15590248868,121920095674,993343650912, 8414029179365,73953763887277,673316834487162, 6340176007793060,61657373569634586, 618445940056365121] |