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.

A073258 Numbers n such that gcd(c(n),n) = gcd(A002808(n),n) = A064814(n)=1 where c(n) is the n-th composite number.

Table of values

n a(n)
1 1
2 3
3 4
4 8
5 9
6 11
7 13
8 17
9 19
10 23
11 25
12 27
13 29
14 31
15 33
16 35
17 37
18 38
19 39
20 40
21 41
22 43
23 44
24 45
25 46
26 47
27 49
28 53
29 57
30 58
31 59
32 61
33 66
34 67
35 68
36 69
37 71
38 73
39 79
40 83
41 84
42 85
43 86
44 87
45 88
46 89
47 90
48 91
49 92
50 94
51 95
52 97
53 100
54 101
55 103
56 106
57 107
58 108
59 109
60 111
61 113
62 115
63 116
64 117
65 118
66 119

List of values

[1, 3, 4, 8, 9, 11, 13, 17, 19, 23, 25, 27, 29, 31, 33, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 53, 57, 58, 59, 61, 66, 67, 68, 69, 71, 73, 79, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 94, 95, 97, 100, 101, 103, 106, 107, 108, 109, 111, 113, 115, 116, 117, 118, 119]

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

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