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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.

A075480 Number of iteration that first becomes smaller than the initial value if Collatz function (A006370) is iterated, starting with numbers of the form 64n + 39.

Table of values

n a(n)
0 14
1 69
2 48
3 20
4 14
5 27
6 17
7 33
8 14
9 20
10 22
11 40
12 14
13 58
14 20
15 17
16 14
17 33
18 22
19 33
20 14
21 64
22 17
23 33
24 14
25 71
26 20
27 35
28 14
29 40
30 43
31 17
32 14
33 71
34 71
35 25
36 14
37 27
38 17
39 40
40 14
41 22
42 25
43 27
44 14
45 43
46 25
47 17
48 14
49 66
50 27
51 25
52 14
53 76
54 17
55 20
56 14
57 22
58 43
59 27
60 14
61 66
62 25
63 17
64 14
65 22

List of values

[14, 69, 48, 20, 14, 27, 17, 33, 14, 20, 22, 40, 14, 58, 20, 17, 14, 33, 22, 33, 14, 64, 17, 33, 14, 71, 20, 35, 14, 40, 43, 17, 14, 71, 71, 25, 14, 27, 17, 40, 14, 22, 25, 27, 14, 43, 25, 17, 14, 66, 27, 25, 14, 76, 17, 20, 14, 22, 43, 27, 14, 66, 25, 17, 14, 22]

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

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