n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 55 |
3 | 749 |
4 | 11251 |
5 | 178835 |
6 | 2949115 |
7 | 49906925 |
8 | 860905315 |
9 | 15071939255 |
10 | 266982872905 |
11 | 4774722189275 |
12 | 86070844191775 |
13 | 1561948324845095 |
14 | 28507384046515555 |
15 | 522867506128197869 |
16 | 9631571375362268515 |
17 | 178094411589895650815 |
18 | 3304192479145474141741 |
19 | 61487420580006795749999 |
[1,5,55,749,11251,178835,2949115,49906925, 860905315,15071939255,266982872905,4774722189275, 86070844191775,1561948324845095,28507384046515555, 522867506128197869,9631571375362268515, 178094411589895650815,3304192479145474141741, 61487420580006795749999] |