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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.

A342126 The binary expansion of a(n) corresponds to that of n where all the 1's have been replaced by 0's except in the first run of 1's.

Table of values

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

List of values

[0, 1, 2, 3, 4, 4, 6, 7, 8, 8, 8, 8, 12, 12, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 28, 28, 30, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 60, 60, 62, 63, 64, 64, 64, 64]

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

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