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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.

A250040 Numbers n such that m = floor(n/10) is coprime to n and, if nonzero, m is also a term of the sequence.

Table of values

n a(n)
1 1
2 10
3 11
4 12
5 13
6 14
7 15
8 16
9 17
10 18
11 19
12 101
13 103
14 107
15 109
16 111
17 112
18 113
19 114
20 115
21 116
22 117
23 118
24 119
25 121
26 125
27 127
28 131
29 132
30 133
31 134
32 135
33 136
34 137
35 138
36 139
37 141
38 143
39 145
40 149
41 151
42 152
43 154
44 157
45 158
46 161
47 163
48 165
49 167
50 169
51 171
52 172
53 173
54 174
55 175

List of values

[1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 101, 103, 107, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 121, 125, 127, 131, 132, 133, 134, 135, 136, 137, 138, 139, 141, 143, 145, 149, 151, 152, 154, 157, 158, 161, 163, 165, 167, 169, 171, 172, 173, 174, 175]

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

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