n | a(n) |
---|---|
4 | 16 |
5 | 272 |
6 | 3968 |
7 | 56320 |
8 | 814080 |
9 | 12207360 |
10 | 191431680 |
11 | 3149752320 |
12 | 54428774400 |
13 | 987559372800 |
14 | 18797300121600 |
15 | 374883257548800 |
16 | 7822865085235200 |
17 | 170560590520320000 |
18 | 3879770715684864000 |
19 | 91945674412720128000 |
[16,272,3968,56320,814080,12207360,191431680, 3149752320,54428774400,987559372800, 18797300121600,374883257548800,7822865085235200, 170560590520320000,3879770715684864000, 91945674412720128000] |