n | a(n) |
---|---|
5 | 25 |
6 | 145 |
7 | 1009 |
8 | 8065 |
9 | 72577 |
10 | 725761 |
11 | 7983361 |
12 | 95800321 |
13 | 1245404161 |
14 | 17435658241 |
15 | 261534873601 |
16 | 4184557977601 |
17 | 71137485619201 |
18 | 1280474741145601 |
19 | 24329020081766401 |
20 | 486580401635328001 |
21 | 10218188434341888001 |
[25,145,1009,8065,72577,725761,7983361,95800321, 1245404161,17435658241,261534873601,4184557977601, 71137485619201,1280474741145601,24329020081766401, 486580401635328001,10218188434341888001] |