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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.

A140888 Number of nonprimes in [210n - 210, 210n] coprime to 210.

Table of values

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

List of values

[6, 13, 15, 16, 18, 19, 21, 17, 21, 21, 22, 23, 18, 22, 26, 21, 22, 21, 24, 24, 22, 25, 22, 22, 26, 24, 22, 21, 28, 23, 25, 23, 25, 24, 26, 25, 22, 27, 27, 24, 27, 22, 24, 25, 23, 26, 23, 28, 23, 26, 27, 26, 27, 26, 27, 30, 22, 26, 27, 22, 25, 24, 26, 29, 27, 24, 27, 31, 25, 26]

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