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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.

A340836 a(n) is the least k such that the binary reversal of k is greater than or equal to n.

Table of values

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

List of values

[0, 1, 3, 3, 5, 5, 7, 7, 9, 9, 11, 11, 11, 11, 15, 15, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 23, 23, 23, 23, 31, 31, 33, 33, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 63, 63, 65, 65, 67, 67]

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

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