n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | -4 |
5 | 0 |
6 | -24 |
7 | -32 |
8 | -120 |
9 | -336 |
10 | -768 |
11 | -2496 |
12 | -6612 |
13 | -17296 |
14 | -61176 |
15 | -150016 |
16 | -518308 |
17 | -1418576 |
18 | -4266064 |
19 | -12800864 |
20 | -36773692 |
21 | -112996720 |
22 | -334128168 |
23 | -1009728992 |
24 | -3068945888 |
25 | -9160795472 |
26 | -27959064832 |
[1,0,0,0,-4,0,-24,-32,-120,-336,-768,-2496,-6612, -17296,-61176,-150016,-518308,-1418576,-4266064, -12800864,-36773692,-112996720,-334128168, -1009728992,-3068945888,-9160795472,-27959064832] |