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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.

A117123 n minus the number of 0's in binary expansion of n.

Table of values

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

List of values

[1, 1, 3, 2, 4, 5, 7, 5, 7, 8, 10, 10, 12, 13, 15, 12, 14, 15, 17, 17, 19, 20, 22, 21, 23, 24, 26, 26, 28, 29, 31, 27, 29, 30, 32, 32, 34, 35, 37, 36, 38, 39, 41, 41, 43, 44, 46, 44, 46, 47, 49, 49, 51, 52, 54, 53, 55, 56, 58, 58, 60, 61, 63, 58, 60, 61, 63, 63, 65, 66, 68, 67, 69]

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

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