n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | -1 |
5 | 2 |
6 | 1 |
7 | -1 |
8 | 2 |
9 | 6 |
10 | 1 |
11 | -1 |
12 | 3 |
13 | -12 |
14 | 24 |
15 | 1 |
16 | -1 |
17 | 4 |
18 | -36 |
19 | 288 |
20 | 120 |
21 | 1 |
22 | -1 |
23 | 5 |
24 | -80 |
25 | 2160 |
26 | -34560 |
27 | 720 |
28 | 1 |
29 | -1 |
30 | 6 |
31 | -150 |
32 | 9600 |
33 | -777600 |
34 | 24883200 |
35 | 5040 |
36 | 1 |
37 | -1 |
38 | 7 |
39 | -252 |
40 | 31500 |
41 | -8064000 |
42 | 1959552000 |
43 | -125411328000 |
44 | 40320 |
45 | 1 |
46 | -1 |
47 | 8 |
48 | -392 |
49 | 84672 |
50 | -52920000 |
[1,1,1,1,-1,2,1,-1,2,6,1,-1,3,-12,24,1,-1,4,-36, 288,120,1,-1,5,-80,2160,-34560,720,1,-1,6,-150, 9600,-777600,24883200,5040,1,-1,7,-252,31500, -8064000,1959552000,-125411328000,40320,1,-1,8, -392,84672,-52920000] |