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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.

A070320 a(n) = Max( phi(k) : k=1..n ).

Table of values

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

List of values

[1, 1, 2, 2, 4, 4, 6, 6, 6, 6, 10, 10, 12, 12, 12, 12, 16, 16, 18, 18, 18, 18, 22, 22, 22, 22, 22, 22, 28, 28, 30, 30, 30, 30, 30, 30, 36, 36, 36, 36, 40, 40, 42, 42, 42, 42, 46, 46, 46, 46, 46, 46, 52, 52, 52, 52, 52, 52, 58, 58, 60, 60, 60, 60, 60, 60, 66, 66, 66, 66, 70, 70]

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

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