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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.

A250050 Numbers n such that m = floor(n/5) is coprime to n and, if nonzero, m is also a term of the sequence.

Table of values

n a(n)
1 1
2 5
3 6
4 7
5 8
6 9
7 26
8 27
9 28
10 29
11 31
12 36
13 37
14 38
15 39
16 41
17 43
18 46
19 47
20 49
21 131
22 133
23 136
24 137
25 139
26 141
27 143
28 146
29 147
30 148
31 149
32 156
33 157
34 158
35 159
36 181
37 186
38 187
39 188
40 189
41 191
42 193
43 196
44 197
45 199
46 206
47 207
48 208
49 209
50 216
51 217
52 218
53 219
54 231
55 233
56 236
57 237

List of values

[1, 5, 6, 7, 8, 9, 26, 27, 28, 29, 31, 36, 37, 38, 39, 41, 43, 46, 47, 49, 131, 133, 136, 137, 139, 141, 143, 146, 147, 148, 149, 156, 157, 158, 159, 181, 186, 187, 188, 189, 191, 193, 196, 197, 199, 206, 207, 208, 209, 216, 217, 218, 219, 231, 233, 236, 237]

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

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