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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.

A352458 2^k appears in the binary expansion of a(n) iff 2^k appears in the binary expansion of n and k AND n = 0 (where AND denotes the bitwise AND operator).

Table of values

n a(n)
0 0
1 1
2 2
3 1
4 4
5 5
6 2
7 1
8 8
9 1
10 2
11 1
12 12
13 5
14 2
15 1
16 16
17 17
18 18
19 17
20 4
21 5
22 2
23 1
24 24
25 17
26 18
27 17
28 12
29 5
30 2
31 1
32 32
33 1
34 34
35 1
36 4
37 5
38 2
39 1
40 40
41 1
42 34
43 1
44 12
45 5
46 2
47 1
48 48
49 17
50 50
51 17
52 4
53 5
54 2
55 1
56 56
57 17
58 50
59 17
60 12
61 5
62 2
63 1
64 64
65 65
66 2
67 1
68 4
69 5
70 2
71 1
72 72
73 65
74 2
75 1
76 12

List of values

[0, 1, 2, 1, 4, 5, 2, 1, 8, 1, 2, 1, 12, 5, 2, 1, 16, 17, 18, 17, 4, 5, 2, 1, 24, 17, 18, 17, 12, 5, 2, 1, 32, 1, 34, 1, 4, 5, 2, 1, 40, 1, 34, 1, 12, 5, 2, 1, 48, 17, 50, 17, 4, 5, 2, 1, 56, 17, 50, 17, 12, 5, 2, 1, 64, 65, 2, 1, 4, 5, 2, 1, 72, 65, 2, 1, 12]

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