n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 16 |
4 | 137 |
5 | 1746 |
6 | 31627 |
7 | 785149 |
8 | 25715377 |
9 | 1070214364 |
10 | 54862242971 |
11 | 3385895548839 |
12 | 247409460018217 |
13 | 21118696317592498 |
14 | 2080845352648353215 |
15 | 234093630772343822281 |
16 | 29777361783749418754593 |
17 | 4247066958924682143019576 |
18 | 674393753569770072828136819 |
[1,1,3,16,137,1746,31627,785149,25715377, 1070214364,54862242971,3385895548839, 247409460018217,21118696317592498, 2080845352648353215,234093630772343822281, 29777361783749418754593,4247066958924682143019576, 674393753569770072828136819] |