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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.

A035170 Coefficients in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = -20.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 1
6 2
7 2
8 1
9 3
10 1
11 0
12 2
13 0
14 2
15 2
16 1
17 0
18 3
19 0
20 1
21 4
22 0
23 2
24 2
25 1
26 0
27 4
28 2
29 2
30 2
31 0
32 1
33 0
34 0
35 2
36 3
37 0
38 0
39 0
40 1
41 2
42 4
43 2
44 0
45 3
46 2
47 2
48 2
49 3
50 1
51 0
52 0
53 0
54 4
55 0
56 2
57 0
58 2
59 0
60 2
61 2
62 0
63 6
64 1
65 0
66 0
67 2
68 0
69 4
70 2
71 0
72 3
73 0
74 0
75 2
76 0
77 0
78 0
79 0
80 1
81 5
82 2
83 2
84 4
85 0
86 2
87 4
88 0
89 2
90 3
91 0
92 2
93 0
94 2
95 0
96 2
97 0
98 3
99 0
100 1
101 2
102 0
103 2
104 0
105 4

List of values

[1, 1, 2, 1, 1, 2, 2, 1, 3, 1, 0, 2, 0, 2, 2, 1, 0, 3, 0, 1, 4, 0, 2, 2, 1, 0, 4, 2, 2, 2, 0, 1, 0, 0, 2, 3, 0, 0, 0, 1, 2, 4, 2, 0, 3, 2, 2, 2, 3, 1, 0, 0, 0, 4, 0, 2, 0, 2, 0, 2, 2, 0, 6, 1, 0, 0, 2, 0, 4, 2, 0, 3, 0, 0, 2, 0, 0, 0, 0, 1, 5, 2, 2, 4, 0, 2, 4, 0, 2, 3, 0, 2, 0, 2, 0, 2, 0, 3, 0, 1, 2, 0, 2, 0, 4]