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.

A355239 Starting values k > 4 of a Collatz iteration reaching either k-1 or k+1.

Table of values

n a(n)
1 5
2 6
3 7
4 9
5 11
6 14
7 15
8 17
9 18
10 19
11 25
12 33
13 39
14 41
15 47
16 51
17 54
18 57
19 59
20 62
21 71
22 81
23 89
24 91
25 107
26 108
27 121
28 159
29 161
30 166
31 183
32 243
33 250
34 252
35 284
36 333
37 376
38 378
39 411
40 432
41 487
42 501
43 639
44 649
45 651
46 667
47 865
48 889
49 959
50 975
51 977
52 1153
53 1185
54 1299
55 1335
56 1368
57 1439
58 1731
59 1779
60 1823
61 2159
62 2307
63 2430
64 2735
65 3239
66 3643
67 4103
68 4617
69 4857
70 4859
71 6155
72 7287
73 7289
74 9233

List of values

[5, 6, 7, 9, 11, 14, 15, 17, 18, 19, 25, 33, 39, 41, 47, 51, 54, 57, 59, 62, 71, 81, 89, 91, 107, 108, 121, 159, 161, 166, 183, 243, 250, 252, 284, 333, 376, 378, 411, 432, 487, 501, 639, 649, 651, 667, 865, 889, 959, 975, 977, 1153, 1185, 1299, 1335, 1368, 1439, 1731, 1779, 1823, 2159, 2307, 2430, 2735, 3239, 3643, 4103, 4617, 4857, 4859, 6155, 7287, 7289, 9233]