n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 10 |
4 | 41 |
5 | 205 |
6 | 1233 |
7 | 8635 |
8 | 69083 |
9 | 621747 |
10 | 6217472 |
11 | 68392202 |
12 | 820706435 |
13 | 10669183662 |
14 | 149368571272 |
15 | 2240528569088 |
16 | 35848457105416 |
17 | 609423770792074 |
18 | 10969627874257335 |
19 | 208422929610889367 |
20 | 4168458592217787342 |
[1,3,10,41,205,1233,8635,69083,621747,6217472, 68392202,820706435,10669183662,149368571272, 2240528569088,35848457105416,609423770792074, 10969627874257335,208422929610889367, 4168458592217787342] |