n | a(n) |
---|---|
0 | -1 |
1 | 2 |
2 | -16 |
3 | 288 |
4 | -9216 |
5 | 460800 |
6 | -33177600 |
7 | 3251404800 |
8 | -416179814400 |
9 | 67421129932800 |
10 | -13484225986560000 |
11 | 3263182688747520000 |
12 | -939796614359285760000 |
13 | 317651255653438586880000 |
14 | -124519292216147926056960000 |
15 | 56033681497266566725632000000 |
[-1,2,-16,288,-9216,460800,-33177600,3251404800, -416179814400,67421129932800,-13484225986560000, 3263182688747520000,-939796614359285760000, 317651255653438586880000, -124519292216147926056960000, 56033681497266566725632000000] |