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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.

A352452 2^k appears in the binary expansion of a(n) iff 2^k appears in the binary expansion of n and k+1 does not divide n.

Table of values

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

List of values

[0, 0, 0, 2, 4, 4, 0, 6, 0, 8, 8, 10, 0, 12, 12, 10, 16, 16, 16, 18, 4, 16, 20, 22, 16, 8, 24, 26, 20, 28, 8, 30, 32, 32, 32, 34, 0, 36, 36, 34, 32, 40, 8, 42, 36, 40, 44, 46, 16, 48, 32, 50, 52, 52, 16, 38, 48, 56, 56, 58, 0, 60, 60, 58, 64, 64, 64, 66, 68, 64]

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

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