n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 48 |
4 | 384 |
5 | 1920 |
6 | 46080 |
7 | 129024 |
8 | 1032192 |
9 | 185794560 |
10 | 3715891200 |
11 | 40874803200 |
12 | 78479622144 |
13 | 10202350878720 |
14 | 64924051046400 |
15 | 42849873690624000 |
16 | 1371195958099968000 |
17 | 4662066257539891200 |
18 | 335668770542872166400 |
19 | 5797915127558701056000 |
[1,2,4,48,384,1920,46080,129024,1032192,185794560, 3715891200,40874803200,78479622144,10202350878720, 64924051046400,42849873690624000, 1371195958099968000,4662066257539891200, 335668770542872166400,5797915127558701056000] |