n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 50 |
4 | 227 |
5 | 1047 |
6 | 4939 |
7 | 23571 |
8 | 113575 |
9 | 550785 |
10 | 2685286 |
11 | 13143538 |
12 | 64538881 |
13 | 317716079 |
14 | 1567357416 |
15 | 7745417246 |
16 | 38330815841 |
17 | 189923526167 |
18 | 942013070950 |
19 | 4676466466360 |
20 | 23233166431451 |
21 | 115500619414161 |
22 | 574524637022633 |
23 | 2859238829041077 |
24 | 14235846954865105 |
25 | 70906304719276783 |
26 | 353293684393014734 |
[1,3,12,50,227,1047,4939,23571,113575,550785, 2685286,13143538,64538881,317716079,1567357416, 7745417246,38330815841,189923526167,942013070950, 4676466466360,23233166431451,115500619414161, 574524637022633,2859238829041077, 14235846954865105,70906304719276783, 353293684393014734] |