n | a(n) |
---|---|
1 | 2 |
2 | -3 |
3 | 6 |
4 | 4 |
5 | -24 |
6 | 24 |
7 | 0 |
8 | 60 |
9 | -180 |
10 | 120 |
11 | -24 |
12 | 0 |
13 | 720 |
14 | -1440 |
15 | 720 |
16 | 0 |
17 | -840 |
18 | 0 |
19 | 8400 |
20 | -12600 |
21 | 5040 |
22 | 960 |
23 | 0 |
24 | -20160 |
25 | 0 |
26 | 100800 |
27 | -120960 |
28 | 40320 |
29 | 0 |
30 | 60480 |
31 | 0 |
32 | -423360 |
33 | 0 |
34 | 1270080 |
35 | -1270080 |
36 | 362880 |
37 | -120960 |
38 | 0 |
39 | 2419200 |
40 | 0 |
41 | -8467200 |
42 | 0 |
43 | 16934400 |
44 | -14515200 |
45 | 3628800 |
46 | 0 |
47 | -11975040 |
48 | 0 |
49 | 79833600 |
50 | 0 |
51 | -167650560 |
52 | 0 |
[2,-3,6,4,-24,24,0,60,-180,120,-24,0,720,-1440, 720,0,-840,0,8400,-12600,5040,960,0,-20160,0, 100800,-120960,40320,0,60480,0,-423360,0,1270080, -1270080,362880,-120960,0,2419200,0,-8467200,0, 16934400,-14515200,3628800,0,-11975040,0,79833600, 0,-167650560,0] |