n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 16 |
3 | 384 |
4 | 15360 |
5 | 860160 |
6 | 61931520 |
7 | 5449973760 |
8 | 566797271040 |
9 | 68015672524800 |
10 | 9250131463372800 |
11 | 1406019982432665600 |
12 | 236211357048687820800 |
13 | 43462889696958559027200 |
14 | 8692577939391711805440000 |
15 | 1877596834908609749975040000 |
16 | 435602465698797461994209280000 |
[0,2,16,384,15360,860160,61931520,5449973760, 566797271040,68015672524800,9250131463372800, 1406019982432665600,236211357048687820800, 43462889696958559027200,8692577939391711805440000, 1877596834908609749975040000, 435602465698797461994209280000] |