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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.

A229762 a(n) = (n XOR floor(n/2)) AND floor(n/2), where AND and XOR are bitwise logical operators.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 2
5 2
6 1
7 0
8 4
9 4
10 5
11 4
12 2
13 2
14 1
15 0
16 8
17 8
18 9
19 8
20 10
21 10
22 9
23 8
24 4
25 4
26 5
27 4
28 2
29 2
30 1
31 0
32 16
33 16
34 17
35 16
36 18
37 18
38 17
39 16
40 20
41 20
42 21
43 20
44 18
45 18
46 17
47 16
48 8
49 8
50 9
51 8
52 10
53 10
54 9
55 8
56 4
57 4
58 5
59 4
60 2
61 2
62 1
63 0
64 32
65 32
66 33
67 32
68 34
69 34
70 33
71 32
72 36
73 36
74 37
75 36
76 34
77 34
78 33

List of values

[0, 0, 1, 0, 2, 2, 1, 0, 4, 4, 5, 4, 2, 2, 1, 0, 8, 8, 9, 8, 10, 10, 9, 8, 4, 4, 5, 4, 2, 2, 1, 0, 16, 16, 17, 16, 18, 18, 17, 16, 20, 20, 21, 20, 18, 18, 17, 16, 8, 8, 9, 8, 10, 10, 9, 8, 4, 4, 5, 4, 2, 2, 1, 0, 32, 32, 33, 32, 34, 34, 33, 32, 36, 36, 37, 36, 34, 34, 33]

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