n | a(n) |
---|---|
1 | 7 |
2 | 21 |
3 | 35 |
4 | 231 |
5 | 777 |
6 | 4291 |
7 | 19995 |
8 | 107331 |
9 | 559895 |
10 | 3037314 |
11 | 16490775 |
12 | 90782986 |
13 | 502334385 |
14 | 2799220041 |
15 | 15672833365 |
16 | 88162676511 |
17 | 497842924845 |
18 | 2821127825971 |
19 | 16035782631855 |
20 | 91404068329560 |
21 | 522308348593785 |
22 | 2991403003191771 |
23 | 17168048327252235 |
24 | 98716281736491076 |
[7,21,35,231,777,4291,19995,107331,559895,3037314, 16490775,90782986,502334385,2799220041, 15672833365,88162676511,497842924845, 2821127825971,16035782631855,91404068329560, 522308348593785,2991403003191771, 17168048327252235,98716281736491076] |