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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.

A330024 a(n) = floor(n/z) where z is the number of zeros in the decimal expansion of 2^n, and a(n)=0 when z=0.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 10
11 11
12 12
13 0
14 0
15 0
16 0
17 17
18 0
19 0
20 20
21 21
22 22
23 23
24 0
25 0
26 26
27 0
28 0
29 29
30 30
31 0
32 0
33 0
34 0
35 0
36 0
37 0
38 38
39 0
40 40
41 41
42 21
43 14
44 44
45 45
46 46
47 47
48 48
49 0
50 50
51 0
52 26
53 17
54 27
55 27
56 28
57 57
58 58
59 29
60 30
61 20
62 31
63 31
64 32
65 65
66 66
67 0
68 68
69 23
70 23
71 71
72 0

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 0, 0, 0, 0, 17, 0, 0, 20, 21, 22, 23, 0, 0, 26, 0, 0, 29, 30, 0, 0, 0, 0, 0, 0, 0, 38, 0, 40, 41, 21, 14, 44, 45, 46, 47, 48, 0, 50, 0, 26, 17, 27, 27, 28, 57, 58, 29, 30, 20, 31, 31, 32, 65, 66, 0, 68, 23, 23, 71, 0]

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