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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.

A229763 a(n) = (2*n) XOR n AND n, where AND and XOR are bitwise logical operators.

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

List of values

[0, 1, 2, 1, 4, 5, 2, 1, 8, 9, 10, 9, 4, 5, 2, 1, 16, 17, 18, 17, 20, 21, 18, 17, 8, 9, 10, 9, 4, 5, 2, 1, 32, 33, 34, 33, 36, 37, 34, 33, 40, 41, 42, 41, 36, 37, 34, 33, 16, 17, 18, 17, 20, 21, 18, 17, 8, 9, 10, 9, 4, 5, 2, 1, 64, 65, 66, 65, 68, 69, 66, 65, 72, 73, 74]

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

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