n | a(n) |
---|---|
1 | 6 |
2 | 10 |
3 | 56 |
4 | 283 |
5 | 1229 |
6 | 4837 |
7 | 17259 |
8 | 57116 |
9 | 176642 |
10 | 515209 |
11 | 1431352 |
12 | 3813222 |
13 | 9775422 |
14 | 24160092 |
15 | 57653822 |
16 | 133042327 |
17 | 297375601 |
18 | 644960872 |
19 | 1359688507 |
20 | 2791062631 |
21 | 5587702747 |
22 | 10926837537 |
23 | 20901070563 |
24 | 39158211715 |
25 | 71941484958 |
26 | 129753179631 |
[6,10,56,283,1229,4837,17259,57116,176642,515209, 1431352,3813222,9775422,24160092,57653822, 133042327,297375601,644960872,1359688507, 2791062631,5587702747,10926837537,20901070563, 39158211715,71941484958,129753179631] |