cp's OEIS Frontend

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.

A143072 A positive integer n is included if both the number of 0's and the number of 1's in the binary representation of n are powers of 2 (including being possibly 1).

Table of values

n a(n)
1 2
2 4
3 5
4 6
5 9
6 10
7 12
8 16
9 23
10 27
11 29
12 30
13 33
14 34
15 36
16 39
17 40
18 43
19 45
20 46
21 48
22 51
23 53
24 54
25 57
26 58
27 60
28 135
29 139
30 141
31 142
32 147
33 149
34 150
35 153
36 154
37 156
38 163
39 165
40 166
41 169
42 170
43 172
44 177
45 178
46 180
47 184
48 195
49 197
50 198
51 201
52 202
53 204
54 209
55 210
56 212
57 216
58 225
59 226
60 228

List of values

[2, 4, 5, 6, 9, 10, 12, 16, 23, 27, 29, 30, 33, 34, 36, 39, 40, 43, 45, 46, 48, 51, 53, 54, 57, 58, 60, 135, 139, 141, 142, 147, 149, 150, 153, 154, 156, 163, 165, 166, 169, 170, 172, 177, 178, 180, 184, 195, 197, 198, 201, 202, 204, 209, 210, 212, 216, 225, 226, 228]

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

Content is available under The OEIS End-User License Agreement.