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