n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 48 |
3 | 1800 |
4 | 47040 |
5 | 1323000 |
6 | 35126784 |
7 | 937872936 |
8 | 24735110400 |
9 | 651019271760 |
10 | 17067389768000 |
11 | 446585320669488 |
12 | 11663935674273792 |
13 | 304250554223980000 |
14 | 7927831278607968000 |
15 | 206402082984558900000 |
16 | 5369988005412124953600 |
[0,2,48,1800,47040,1323000,35126784,937872936, 24735110400,651019271760,17067389768000, 446585320669488,11663935674273792, 304250554223980000,7927831278607968000, 206402082984558900000,5369988005412124953600] |