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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.

A179118 Number of Collatz steps to reach 1 starting with 2^n + 1.

Table of values

n a(n)
0 1
1 7
2 5
3 19
4 12
5 26
6 27
7 121
8 122
9 35
10 36
11 156
12 113
13 52
14 53
15 98
16 99
17 100
18 101
19 102
20 72
21 166
22 167
23 168
24 169
25 170
26 171
27 247
28 173
29 187
30 188
31 251
32 252
33 178
34 179
35 317
36 243
37 195
38 196
39 153
40 154
41 155
42 156
43 400
44 326
45 495
46 496
47 161
48 162
49 331
50 332
51 408
52 471
53 410
54 411
55 337
56 338
57 339
58 340
59 553

List of values

[1, 7, 5, 19, 12, 26, 27, 121, 122, 35, 36, 156, 113, 52, 53, 98, 99, 100, 101, 102, 72, 166, 167, 168, 169, 170, 171, 247, 173, 187, 188, 251, 252, 178, 179, 317, 243, 195, 196, 153, 154, 155, 156, 400, 326, 495, 496, 161, 162, 331, 332, 408, 471, 410, 411, 337, 338, 339, 340, 553]

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

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