n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 17 |
4 | 85 |
5 | 343 |
6 | 1715 |
7 | 7501 |
8 | 37505 |
9 | 171085 |
10 | 855425 |
11 | 3999601 |
12 | 19998005 |
13 | 94992091 |
14 | 474960455 |
15 | 2280616019 |
16 | 11403080095 |
17 | 55180159045 |
18 | 275900795225 |
19 | 1342819665229 |
20 | 6714098326145 |
21 | 32822357011259 |
22 | 164111785056295 |
23 | 805053179115385 |
24 | 4025265895576925 |
25 | 19800669173042077 |
26 | 99003345865210385 |
[1,1,5,17,85,343,1715,7501,37505,171085,855425, 3999601,19998005,94992091,474960455,2280616019, 11403080095,55180159045,275900795225, 1342819665229,6714098326145,32822357011259, 164111785056295,805053179115385,4025265895576925, 19800669173042077,99003345865210385] |