n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | 1 |
4 | -1 |
5 | 1 |
6 | -2 |
7 | 2 |
8 | -2 |
9 | 1 |
10 | 6 |
11 | -6 |
12 | 6 |
13 | -3 |
14 | 1 |
15 | -30 |
16 | 30 |
17 | -30 |
18 | 15 |
19 | -5 |
20 | 1 |
21 | 240 |
22 | -240 |
23 | 240 |
24 | -120 |
25 | 40 |
26 | -8 |
27 | 1 |
28 | -3120 |
29 | 3120 |
30 | -3120 |
31 | 1560 |
32 | -520 |
33 | 104 |
34 | -13 |
35 | 1 |
36 | 65520 |
37 | -65520 |
38 | 65520 |
39 | -32760 |
40 | 10920 |
[1,-1,1,1,-1,1,-2,2,-2,1,6,-6,6,-3,1,-30,30,-30, 15,-5,1,240,-240,240,-120,40,-8,1,-3120,3120, -3120,1560,-520,104,-13,1,65520,-65520,65520, -32760,10920] |