cp's OEIS Frontend

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.

A250043 Numbers n such that m = floor(n/9) is not coprime to n and, if nonzero, m is also a term of the sequence.

Table of values

n a(n)
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 18
9 20
10 22
11 24
12 26
13 27
14 30
15 33
16 36
17 38
18 40
19 42
20 44
21 45
22 50
23 54
24 56
25 57
26 58
27 60
28 62
29 63
30 70
31 72
32 74
33 76
34 78
35 80
36 162
37 164
38 165
39 166
40 168
41 170
42 180
43 182
44 184
45 185
46 186
47 188
48 198
49 200
50 202
51 204
52 206
53 216
54 218
55 219
56 220
57 222
58 224
59 234
60 236

List of values

[2, 3, 4, 5, 6, 7, 8, 18, 20, 22, 24, 26, 27, 30, 33, 36, 38, 40, 42, 44, 45, 50, 54, 56, 57, 58, 60, 62, 63, 70, 72, 74, 76, 78, 80, 162, 164, 165, 166, 168, 170, 180, 182, 184, 185, 186, 188, 198, 200, 202, 204, 206, 216, 218, 219, 220, 222, 224, 234, 236]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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