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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.

A096861 Function A062401(x) = phi(sigma(x)) = f(x) is iterated. Starting with n, a(n) is the largest term arising in trajectory.

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 5
6 6
7 7
8 8
9 12
10 10
11 11
12 12
13 13
14 14
15 15
16 30
17 17
18 30
19 19
20 20
21 30
22 22
23 23
24 30
25 30
26 26
27 30
28 30
29 29
30 30
31 31
32 96
33 33
34 34
35 35
36 96
37 37
38 38
39 39
40 40
41 41
42 96
43 43
44 44
45 45
46 46
47 47
48 60
49 96
50 60
51 51
52 96
53 53
54 96
55 55
56 96
57 96
58 58
59 59
60 60
61 61
62 96
63 63
64 126
65 65
66 66
67 96
68 96
69 96
70 70
71 71
72 96

List of values

[1, 2, 3, 6, 5, 6, 7, 8, 12, 10, 11, 12, 13, 14, 15, 30, 17, 30, 19, 20, 30, 22, 23, 30, 30, 26, 30, 30, 29, 30, 31, 96, 33, 34, 35, 96, 37, 38, 39, 40, 41, 96, 43, 44, 45, 46, 47, 60, 96, 60, 51, 96, 53, 96, 55, 96, 96, 58, 59, 60, 61, 96, 63, 126, 65, 66, 96, 96, 96, 70, 71, 96]

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