n | a(n) |
---|---|
4 | 1 |
5 | 3 |
6 | 17 |
7 | 136 |
8 | 2388 |
9 | 80890 |
10 | 5114079 |
11 | 573273505 |
12 | 113095167034 |
13 | 39582550575765 |
14 | 24908445793058442 |
15 | 28560405143495819079 |
16 | 60364410130177223014724 |
17 | 237403933018799958309530349 |
18 | 1750323137355778190158082029500 |
19 | 24333358813699371350715221107464003 |
20 | 640811613278752754485012443963579501421 |
[1,3,17,136,2388,80890,5114079,573273505, 113095167034,39582550575765,24908445793058442, 28560405143495819079,60364410130177223014724, 237403933018799958309530349, 1750323137355778190158082029500, 24333358813699371350715221107464003, 640811613278752754485012443963579501421] |