n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 0 |
4 | -2 |
5 | 0 |
6 | 2 |
7 | 0 |
8 | 24 |
9 | 0 |
10 | -40 |
11 | 0 |
12 | 16 |
13 | 0 |
14 | -720 |
15 | 0 |
16 | 1568 |
17 | 0 |
18 | -1120 |
19 | 0 |
20 | 272 |
21 | 0 |
22 | 40320 |
23 | 0 |
24 | -104704 |
25 | 0 |
26 | 102144 |
27 | 0 |
28 | -45696 |
29 | 0 |
30 | 7936 |
31 | 0 |
32 | -3628800 |
33 | 0 |
34 | 10720512 |
35 | 0 |
36 | -12869120 |
37 | 0 |
38 | 8042496 |
39 | 0 |
40 | -2618880 |
41 | 0 |
42 | 353792 |
43 | 0 |
44 | 479001600 |
45 | 0 |
46 | -1565051904 |
47 | 0 |
48 | 2188865536 |
49 | 0 |
50 | -1712668672 |
51 | 0 |
52 | 789854208 |
53 | 0 |
54 | -202369024 |
55 | 0 |
[0,1,0,-2,0,2,0,24,0,-40,0,16,0,-720,0,1568,0, -1120,0,272,0,40320,0,-104704,0,102144,0,-45696,0, 7936,0,-3628800,0,10720512,0,-12869120,0,8042496, 0,-2618880,0,353792,0,479001600,0,-1565051904,0, 2188865536,0,-1712668672,0,789854208,0,-202369024, 0] |