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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.

A163505 a(n) = (n-th odd nonprime) mod (n-th odd number).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 7
6 5
7 7
8 5
9 5
10 7
11 7
12 5
13 5
14 3
15 5
16 3
17 3
18 5
19 3
20 3
21 3
22 1
23 1
24 46
25 46
26 48
27 52
28 1
29 1
30 58
31 58
32 58
33 58
34 58
35 60
36 62
37 62
38 66
39 66
40 66
41 66
42 70
43 70
44 72
45 72
46 74
47 76
48 76
49 78
50 78
51 82
52 82
53 82
54 82
55 86
56 90
57 90
58 90
59 90
60 90
61 92
62 92
63 92
64 92
65 92
66 94
67 98
68 100
69 100
70 104
71 104
72 104
73 104
74 106
75 106

List of values

[0, 0, 0, 0, 7, 5, 7, 5, 5, 7, 7, 5, 5, 3, 5, 3, 3, 5, 3, 3, 3, 1, 1, 46, 46, 48, 52, 1, 1, 58, 58, 58, 58, 58, 60, 62, 62, 66, 66, 66, 66, 70, 70, 72, 72, 74, 76, 76, 78, 78, 82, 82, 82, 82, 86, 90, 90, 90, 90, 90, 92, 92, 92, 92, 92, 94, 98, 100, 100, 104, 104, 104, 104, 106, 106]

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