n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 22 |
4 | 117 |
5 | 678 |
6 | 4162 |
7 | 26588 |
8 | 174925 |
9 | 1177158 |
10 | 8064854 |
11 | 56062804 |
12 | 394443458 |
13 | 2803490524 |
14 | 20098913252 |
15 | 145175116408 |
16 | 1055463627197 |
17 | 7717664983366 |
18 | 56720231324046 |
19 | 418757618733092 |
20 | 3104269959560566 |
[1,5,22,117,678,4162,26588,174925,1177158,8064854, 56062804,394443458,2803490524,20098913252, 145175116408,1055463627197,7717664983366, 56720231324046,418757618733092,3104269959560566] |