n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 53 |
4 | 745 |
5 | 14761 |
6 | 342125 |
7 | 9919133 |
8 | 320525905 |
9 | 12231596881 |
10 | 507077877845 |
11 | 23997083985413 |
12 | 1214302628958265 |
13 | 68589494705086201 |
14 | 4098200887304658365 |
15 | 269019686917890755693 |
16 | 18535055580911326897825 |
17 | 1386438585493229417193121 |
18 | 108209001114760469546923685 |
[1,1,5,53,745,14761,342125,9919133,320525905, 12231596881,507077877845,23997083985413, 1214302628958265,68589494705086201, 4098200887304658365,269019686917890755693, 18535055580911326897825,1386438585493229417193121, 108209001114760469546923685] |