n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 22 |
5 | 67 |
6 | 213 |
7 | 853 |
8 | 3413 |
9 | 13653 |
10 | 66406 |
11 | 332031 |
12 | 1660156 |
13 | 8734003 |
14 | 52404019 |
15 | 314424115 |
16 | 1886544691 |
17 | 12193514915 |
18 | 85354604406 |
19 | 597482230843 |
20 | 4182375615902 |
21 | 31414617936457 |
22 | 251316943491657 |
23 | 2010535547933257 |
24 | 16084284383466057 |
25 | 135502101309790873 |
26 | 1219518911788117858 |
[1,3,7,22,67,213,853,3413,13653,66406,332031, 1660156,8734003,52404019,314424115,1886544691, 12193514915,85354604406,597482230843, 4182375615902,31414617936457,251316943491657, 2010535547933257,16084284383466057, 135502101309790873,1219518911788117858] |