n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | -1 |
4 | 1 |
5 | -1 |
6 | 1 |
7 | -1 |
8 | 1 |
9 | -1 |
10 | 1 |
11 | -1 |
12 | 1 |
13 | -1 |
14 | 1 |
15 | -1 |
16 | 1 |
17 | -1 |
18 | 1 |
19 | -1 |
20 | 1 |
21 | -1 |
22 | 1 |
23 | -1 |
24 | 1 |
25 | -1 |
26 | 1 |
27 | -1 |
28 | 1 |
29 | -1 |
30 | 1 |
31 | -1 |
32 | 0 |
33 | 1 |
34 | -2 |
35 | 3 |
36 | -4 |
37 | 5 |
38 | -6 |
39 | 7 |
40 | -8 |
41 | 9 |
42 | -10 |
43 | 11 |
44 | -12 |
45 | 13 |
46 | -14 |
47 | 15 |
48 | -16 |
49 | 17 |
50 | -18 |
51 | 19 |
52 | -20 |
53 | 21 |
54 | -22 |
55 | 23 |
56 | -24 |
57 | 25 |
58 | -26 |
59 | 27 |
60 | -28 |
61 | 29 |
62 | -30 |
63 | 31 |
64 | -31 |
65 | 30 |
66 | -28 |
67 | 25 |
68 | -21 |
69 | 16 |
70 | -10 |
71 | 3 |
72 | 5 |
73 | -14 |
74 | 24 |
75 | -35 |
76 | 47 |
77 | -60 |
78 | 74 |
79 | -89 |
80 | 105 |
81 | -122 |
[1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1, -1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,0,1,-2,3,-4,5,-6, 7,-8,9,-10,11,-12,13,-14,15,-16,17,-18,19,-20,21, -22,23,-24,25,-26,27,-28,29,-30,31,-31,30,-28,25, -21,16,-10,3,5,-14,24,-35,47,-60,74,-89,105,-122] |