n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 13 |
3 | 57 |
4 | 265 |
5 | 1249 |
6 | 5985 |
7 | 28921 |
8 | 140769 |
9 | 688451 |
10 | 3380087 |
11 | 16643697 |
12 | 82146741 |
13 | 406201851 |
14 | 2011677275 |
15 | 9975162381 |
16 | 49514935929 |
17 | 245999398831 |
18 | 1223080149815 |
19 | 6084867581499 |
20 | 30288917519411 |
21 | 150841365748097 |
22 | 751509222633005 |
23 | 3745439135070101 |
24 | 18672679963259901 |
25 | 93117178620432547 |
[1,3,13,57,265,1249,5985,28921,140769,688451, 3380087,16643697,82146741,406201851,2011677275, 9975162381,49514935929,245999398831,1223080149815, 6084867581499,30288917519411,150841365748097, 751509222633005,3745439135070101, 18672679963259901,93117178620432547] |