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.

A247521 Numbers k such that d(r,k) = 1 and d(s,k) = 0, where d(x,k) = k-th binary digit of x, r = {golden ratio}, s = {(golden ratio)/2}, and { } = fractional part.

Table of values

n a(n)
1 4
2 11
3 14
4 18
5 24
6 27
7 32
8 34
9 42
10 45
11 47
12 50
13 60
14 62
15 64
16 71
17 76
18 81
19 90
20 98
21 100
22 105
23 109
24 112
25 117
26 123
27 126
28 132
29 137
30 143
31 147
32 150
33 154
34 157
35 159
36 167
37 171
38 175
39 178
40 183
41 186
42 188
43 192
44 202
45 205
46 210
47 213
48 215
49 220
50 224
51 228
52 233
53 240
54 245
55 249
56 252

List of values

[4, 11, 14, 18, 24, 27, 32, 34, 42, 45, 47, 50, 60, 62, 64, 71, 76, 81, 90, 98, 100, 105, 109, 112, 117, 123, 126, 132, 137, 143, 147, 150, 154, 157, 159, 167, 171, 175, 178, 183, 186, 188, 192, 202, 205, 210, 213, 215, 220, 224, 228, 233, 240, 245, 249, 252]

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

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