n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 55 |
3 | 785 |
4 | 12775 |
5 | 224945 |
6 | 4174135 |
7 | 80404385 |
8 | 1592666695 |
9 | 32238859025 |
10 | 663961262935 |
11 | 13868665189505 |
12 | 293105002282855 |
13 | 6256280361209585 |
14 | 134676678504352375 |
15 | 2920490688138377825 |
16 | 63738849200291875975 |
17 | 1398964964239496726225 |
18 | 30859472167442041607575 |
[1,5,55,785,12775,224945,4174135,80404385, 1592666695,32238859025,663961262935, 13868665189505,293105002282855,6256280361209585, 134676678504352375,2920490688138377825, 63738849200291875975,1398964964239496726225, 30859472167442041607575] |