cp's OEIS Frontend

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.

A039501 Iterations of "n->n/2 if n even, n->3n-1 if n odd" (A001281) starting at these numbers reach 5.

Table of values

n a(n)
1 5
2 7
3 9
4 10
5 13
6 14
7 18
8 19
9 20
10 26
11 27
12 28
13 35
14 36
15 38
16 40
17 47
18 51
19 52
20 54
21 56
22 63
23 70
24 72
25 75
26 76
27 80
28 81
29 89
30 93
31 94
32 102
33 104
34 107
35 108
36 112
37 119
38 121
39 125
40 126
41 133
42 139
43 140
44 143
45 144
46 149
47 150
48 152
49 159
50 160
51 161
52 162
53 167
54 177
55 178
56 181
57 186
58 187
59 188
60 191

List of values

[5, 7, 9, 10, 13, 14, 18, 19, 20, 26, 27, 28, 35, 36, 38, 40, 47, 51, 52, 54, 56, 63, 70, 72, 75, 76, 80, 81, 89, 93, 94, 102, 104, 107, 108, 112, 119, 121, 125, 126, 133, 139, 140, 143, 144, 149, 150, 152, 159, 160, 161, 162, 167, 177, 178, 181, 186, 187, 188, 191]