n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 288 |
5 | 166560 |
6 | 33539040 |
7 | 2350746720 |
8 | 75756999360 |
9 | 1388552614848 |
10 | 16744788486720 |
11 | 146769785743680 |
12 | 1002373493948640 |
13 | 5606534724167520 |
14 | 26640793339768608 |
15 | 110556058012152480 |
16 | 409297168707073920 |
17 | 1374572399886053760 |
18 | 4243833928227876480 |
[0,0,0,0,288,166560,33539040,2350746720, 75756999360,1388552614848,16744788486720, 146769785743680,1002373493948640,5606534724167520, 26640793339768608,110556058012152480, 409297168707073920,1374572399886053760, 4243833928227876480] |