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A015339 as a simple table

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

[1,1,0,0,0,-1,-1,-1,-1,0,1,1,1,1,1,0,-1,-1,-1,-2,
 -1,0,0,1,2,1,1,1,0,-1,-1,-1,-1,-1,0,1,1,1,2,1,0,0,
 -1,-2,-1,-1,-1,0,1,1,1,1,1,0,-1,-1,-1,-2,-1,0,0,1,
 2,1,1,1,0,-1,-1,-1,-1,-1,0,1,1,1,2,1,0,0,-1]

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Last modified May 20 20:16 EDT 2019. Contains 323426 sequences. (Running on oeis4.)