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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.

A179627 a(n) = length of Collatz sequence starting with n-th prime.

Table of values

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

List of values

[2, 6, 5, 12, 11, 8, 10, 15, 12, 14, 68, 16, 70, 21, 67, 10, 23, 15, 20, 66, 74, 25, 71, 22, 76, 19, 57, 65, 73, 11, 32, 21, 59, 29, 18, 13, 26, 18, 45, 23, 23, 15, 31, 77, 20, 77, 28, 47, 12, 25, 55, 36, 17, 44, 79, 52, 22, 30, 14, 30, 41, 76, 27, 57, 84, 27, 19, 73, 81, 24, 81]

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

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