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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.

A247456 Numbers k such that d(r,k) = 0 and d(s,k) = 1, where d(x,k) = k-th binary digit of x, r = {sqrt(2)}, s = {3*sqrt(2)}, and { } = fractional part.

Table of values

n a(n)
1 4
2 6
3 12
4 14
5 20
6 24
7 28
8 37
9 47
10 52
11 55
12 60
13 63
14 69
15 83
16 85
17 92
18 100
19 102
20 104
21 106
22 119
23 121
24 129
25 150
26 157
27 159
28 163
29 166
30 168
31 177
32 179
33 184
34 186
35 190
36 198
37 201
38 215
39 219
40 228
41 232
42 236
43 241
44 246
45 250
46 252
47 254
48 256
49 258
50 271
51 276
52 284
53 288
54 303
55 305

List of values

[4, 6, 12, 14, 20, 24, 28, 37, 47, 52, 55, 60, 63, 69, 83, 85, 92, 100, 102, 104, 106, 119, 121, 129, 150, 157, 159, 163, 166, 168, 177, 179, 184, 186, 190, 198, 201, 215, 219, 228, 232, 236, 241, 246, 250, 252, 254, 256, 258, 271, 276, 284, 288, 303, 305]

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

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