n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 38 |
4 | 257 |
5 | 1935 |
6 | 15505 |
7 | 129519 |
8 | 1115061 |
9 | 9823160 |
10 | 88121887 |
11 | 802227794 |
12 | 7392428009 |
13 | 68819554003 |
14 | 646276497617 |
15 | 6114880542117 |
16 | 58237420303109 |
17 | 557850829527246 |
18 | 5370956411708779 |
19 | 51947475492561014 |
20 | 504492516832543885 |
21 | 4917564488572565160 |
[1,2,7,38,257,1935,15505,129519,1115061,9823160, 88121887,802227794,7392428009,68819554003, 646276497617,6114880542117,58237420303109, 557850829527246,5370956411708779, 51947475492561014,504492516832543885, 4917564488572565160] |