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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.

A213543 a(n) = n AND 3^n, where AND is the bitwise AND operator.

Table of values

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

List of values

[0, 1, 0, 3, 0, 1, 0, 3, 0, 1, 8, 11, 0, 1, 8, 11, 0, 1, 0, 19, 16, 17, 16, 3, 0, 1, 8, 27, 16, 17, 24, 11, 0, 1, 0, 3, 0, 33, 0, 3, 32, 33, 40, 43, 32, 1, 40, 43, 0, 1, 0, 19, 16, 49, 16, 3, 32, 33, 40, 59, 48, 17, 56, 43, 0, 1, 0, 3, 64, 65, 64, 3, 0, 65, 8, 75]

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