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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.

A035203 Coefficients in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = 21.

Table of values

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

List of values

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