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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.

A049195 Numbers k such that the Euler totient function phi(k) is divisible by a square.

Table of values

n a(n)
1 5
2 8
3 10
4 12
5 13
6 15
7 16
8 17
9 19
10 20
11 21
12 24
13 25
14 26
15 27
16 28
17 29
18 30
19 32
20 33
21 34
22 35
23 36
24 37
25 38
26 39
27 40
28 41
29 42
30 44
31 45
32 48
33 50
34 51
35 52
36 53
37 54
38 55
39 56
40 57
41 58
42 60
43 61
44 63
45 64
46 65
47 66
48 68
49 69
50 70
51 72
52 73
53 74
54 75
55 76
56 77
57 78
58 80
59 81
60 82
61 84
62 85
63 87
64 88
65 89
66 90
67 91
68 92
69 93
70 95

List of values

[5, 8, 10, 12, 13, 15, 16, 17, 19, 20, 21, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 63, 64, 65, 66, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 87, 88, 89, 90, 91, 92, 93, 95]

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

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