n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 48 |
3 | 408 |
4 | 3600 |
5 | 42336 |
6 | 781728 |
7 | 13646016 |
8 | 90893568 |
9 | -1798204416 |
10 | 70794720768 |
11 | 7538546211840 |
12 | 63813109782528 |
13 | -12977417912045568 |
[1,6,48,408,3600,42336,781728,13646016,90893568, -1798204416,70794720768,7538546211840, 63813109782528,-12977417912045568] |