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.

A330220 Numbers whose representation in base 2^w contains only the digit 2^k for some w and k such that 0 <= k < w.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 4
6 5
7 7
8 8
9 9
10 10
11 15
12 16
13 17
14 18
15 21
16 31
17 32
18 33
19 34
20 36
21 42
22 63
23 64
24 65
25 66
26 68
27 73
28 85
29 127
30 128
31 129
32 130
33 132
34 136
35 146
36 170
37 255
38 256
39 257
40 258
41 260
42 264
43 273
44 292
45 341
46 511
47 512
48 513
49 514
50 516
51 520
52 528
53 546
54 585
55 682
56 1023
57 1024
58 1025
59 1026

List of values

[0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 15, 16, 17, 18, 21, 31, 32, 33, 34, 36, 42, 63, 64, 65, 66, 68, 73, 85, 127, 128, 129, 130, 132, 136, 146, 170, 255, 256, 257, 258, 260, 264, 273, 292, 341, 511, 512, 513, 514, 516, 520, 528, 546, 585, 682, 1023, 1024, 1025, 1026]