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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.

A213199 Numbers k whose Collatz (3x+1) trajectory includes at least one term that is greater than k.

Table of values

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

List of values

[3, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83]

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

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