n | a(n) |
---|---|
3 | 1 |
4 | 2 |
5 | 5 |
6 | 17 |
7 | 62 |
8 | 275 |
9 | 1272 |
10 | 6225 |
11 | 31075 |
12 | 158376 |
13 | 816229 |
14 | 4251412 |
15 | 22319056 |
16 | 117998524 |
17 | 627573216 |
18 | 3355499036 |
19 | 18025442261 |
20 | 97239773408 |
21 | 526560862829 |
22 | 2861189112867 |
23 | 15595669996482 |
24 | 85252072993968 |
25 | 467247847612316 |
26 | 2567091151780343 |
[1,2,5,17,62,275,1272,6225,31075,158376,816229, 4251412,22319056,117998524,627573216,3355499036, 18025442261,97239773408,526560862829, 2861189112867,15595669996482,85252072993968, 467247847612316,2567091151780343] |