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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.

A368877 a(n) = f^k(n) where f(n) = A014682(n), the Collatz map, and k = A070939(n), the length of n in base 2.

Table of values

n a(n)
1 2
2 2
3 8
4 2
5 2
6 8
7 26
8 2
9 17
10 2
11 20
12 8
13 8
14 26
15 80
16 2
17 5
18 17
19 17
20 2
21 2
22 20
23 20
24 8
25 22
26 8
27 71
28 26
29 26
30 80
31 242
32 2
33 44
34 5
35 5
36 17
37 17
38 17
39 152
40 2
41 161
42 2
43 56
44 20
45 20
46 20
47 182
48 8
49 7
50 22
51 22
52 8
53 8
54 71
55 71
56 26
57 74
58 26
59 76
60 80
61 80
62 242
63 728
64 2
65 14
66 44
67 44
68 5
69 5
70 5
71 137
72 17
73 47
74 17
75 16

List of values

[2, 2, 8, 2, 2, 8, 26, 2, 17, 2, 20, 8, 8, 26, 80, 2, 5, 17, 17, 2, 2, 20, 20, 8, 22, 8, 71, 26, 26, 80, 242, 2, 44, 5, 5, 17, 17, 17, 152, 2, 161, 2, 56, 20, 20, 20, 182, 8, 7, 22, 22, 8, 8, 71, 71, 26, 74, 26, 76, 80, 80, 242, 728, 2, 14, 44, 44, 5, 5, 5, 137, 17, 47, 17, 16]

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