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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.

A379851 Numbers k such that phi(k) does not divide k. Complement of A007694.

Table of values

n a(n)
1 3
2 5
3 7
4 9
5 10
6 11
7 13
8 14
9 15
10 17
11 19
12 20
13 21
14 22
15 23
16 25
17 26
18 27
19 28
20 29
21 30
22 31
23 33
24 34
25 35
26 37
27 38
28 39
29 40
30 41
31 42
32 43
33 44
34 45
35 46
36 47
37 49
38 50
39 51
40 52
41 53
42 55
43 56
44 57
45 58
46 59
47 60
48 61
49 62
50 63
51 65
52 66
53 67
54 68
55 69
56 70
57 71
58 73
59 74
60 75
61 76
62 77
63 78
64 79
65 80
66 81
67 82
68 83
69 84
70 85
71 86
72 87
73 88
74 89

List of values

[3, 5, 7, 9, 10, 11, 13, 14, 15, 17, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89]

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

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