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.

A247519 Numbers k such that d(r,k) = 0 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 3
2 9
3 10
4 23
5 31
6 44
7 49
8 56
9 57
10 58
11 59
12 70
13 75
14 80
15 84
16 85
17 86
18 87
19 88
20 89
21 93
22 94
23 95
24 96
25 97
26 104
27 116
28 119
29 120
30 121
31 122
32 128
33 129
34 130
35 131
36 134
37 135
38 136
39 139
40 140
41 141
42 142
43 145
44 146
45 149
46 166
47 173
48 174
49 177
50 182
51 185
52 190
53 191
54 199
55 200
56 201
57 208

List of values

[3, 9, 10, 23, 31, 44, 49, 56, 57, 58, 59, 70, 75, 80, 84, 85, 86, 87, 88, 89, 93, 94, 95, 96, 97, 104, 116, 119, 120, 121, 122, 128, 129, 130, 131, 134, 135, 136, 139, 140, 141, 142, 145, 146, 149, 166, 173, 174, 177, 182, 185, 190, 191, 199, 200, 201, 208]