n | a(n) |
---|---|
1 | 7 |
2 | 40 |
3 | 261 |
4 | 1391 |
5 | 7113 |
6 | 31226 |
7 | 131242 |
8 | 514539 |
9 | 1914507 |
10 | 6772946 |
11 | 22897312 |
12 | 74168162 |
13 | 230889987 |
14 | 691544987 |
15 | 1994352403 |
16 | 5541664374 |
17 | 14851119427 |
18 | 38433580993 |
19 | 96194422578 |
20 | 233234971795 |
21 | 548761214881 |
22 | 1255035407604 |
[7,40,261,1391,7113,31226,131242,514539,1914507, 6772946,22897312,74168162,230889987,691544987, 1994352403,5541664374,14851119427,38433580993, 96194422578,233234971795,548761214881, 1255035407604] |