n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 85 |
5 | 781 |
6 | 9331 |
7 | 137257 |
8 | 2396745 |
9 | 48427561 |
10 | 1111111111 |
11 | 28531167061 |
12 | 810554586205 |
13 | 25239592216021 |
14 | 854769755812155 |
15 | 31278135027204241 |
16 | 1229782938247303441 |
17 | 51702516367896047761 |
18 | 2314494592664502210319 |
19 | 109912203092239643840221 |
[0,1,3,13,85,781,9331,137257,2396745,48427561, 1111111111,28531167061,810554586205, 25239592216021,854769755812155,31278135027204241, 1229782938247303441,51702516367896047761, 2314494592664502210319,109912203092239643840221] |