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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.

A179891 Composites h such that antiharmonic mean B(h) of the numbers k < h such that gcd(k, h) = 1 is not integer.

Table of values

n a(n)
1 4
2 6
3 8
4 9
5 12
6 14
7 15
8 16
9 18
10 20
11 21
12 24
13 25
14 26
15 27
16 28
17 30
18 32
19 33
20 35
21 36
22 38
23 39
24 40
25 42
26 44
27 45
28 48
29 49
30 50
31 51
32 52
33 54
34 56
35 57
36 60
37 62
38 63
39 64
40 65
41 66
42 68
43 69
44 70
45 72
46 74
47 75
48 76
49 77
50 78
51 80
52 81
53 84
54 86
55 87
56 88
57 90
58 92
59 93
60 95
61 96
62 98
63 99
64 100
65 102
66 104
67 105
68 108
69 111

List of values

[4, 6, 8, 9, 12, 14, 15, 16, 18, 20, 21, 24, 25, 26, 27, 28, 30, 32, 33, 35, 36, 38, 39, 40, 42, 44, 45, 48, 49, 50, 51, 52, 54, 56, 57, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 84, 86, 87, 88, 90, 92, 93, 95, 96, 98, 99, 100, 102, 104, 105, 108, 111]

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

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