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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A035212 Coefficients in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = 30.

Table of values

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

List of values

[1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 0, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 0, 0, 1, 1, 2, 1, 2, 2, 1, 0, 1, 0, 2, 2, 1, 2, 2, 2, 1, 0, 2, 0, 0, 1, 0, 0, 1, 3, 1, 2, 2, 0, 1, 0, 2, 2, 2, 0, 1, 0, 0, 2, 1, 2, 0, 0, 2, 0, 2, 2, 1, 0, 2, 1, 2, 0, 2, 0, 1, 1]