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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.

A118736 Number of zeros in binary expansion of 3^n.

Table of values

n a(n)
0 0
1 0
2 2
3 1
4 4
5 2
6 4
7 7
8 7
9 7
10 7
11 5
12 10
13 10
14 9
15 9
16 15
17 13
18 15
19 14
20 15
21 14
22 16
23 15
24 23
25 22
26 18
27 13
28 20
29 21
30 23
31 24
32 25
33 19
34 25
35 24
36 31
37 25
38 25
39 30
40 36
41 26
42 29
43 30
44 36
45 38
46 28
47 37
48 36
49 45
50 39
51 35
52 41
53 50
54 47
55 46
56 50
57 51
58 50
59 46
60 40
61 41
62 50
63 43
64 46
65 53
66 60
67 60
68 53
69 55
70 47
71 45
72 57
73 58

List of values

[0, 0, 2, 1, 4, 2, 4, 7, 7, 7, 7, 5, 10, 10, 9, 9, 15, 13, 15, 14, 15, 14, 16, 15, 23, 22, 18, 13, 20, 21, 23, 24, 25, 19, 25, 24, 31, 25, 25, 30, 36, 26, 29, 30, 36, 38, 28, 37, 36, 45, 39, 35, 41, 50, 47, 46, 50, 51, 50, 46, 40, 41, 50, 43, 46, 53, 60, 60, 53, 55, 47, 45, 57, 58]

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

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