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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.

A299351 For x=n, iterate the map x -> Product_{k is a prime dividing x} (k + 1), a(n) is the number of steps to see a repeated term for the first time.

Table of values

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

List of values

[3, 2, 2, 3, 2, 4, 3, 3, 3, 2, 1, 4, 3, 3, 3, 3, 2, 4, 3, 4, 3, 3, 2, 3, 4, 3, 3, 4, 3, 4, 3, 3, 3, 3, 2, 5, 4, 4, 3, 4, 3, 4, 3, 3, 3, 3, 2, 4, 3, 3, 4, 3, 2, 3, 3, 4, 4, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 3, 3, 3, 2, 6, 5, 3, 4, 3, 4, 4, 3, 3, 4, 4, 3, 3, 4, 4, 3]