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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.

A030103 Base 4 reversal of n (written in base 10).

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 1
5 5
6 9
7 13
8 2
9 6
10 10
11 14
12 3
13 7
14 11
15 15
16 1
17 17
18 33
19 49
20 5
21 21
22 37
23 53
24 9
25 25
26 41
27 57
28 13
29 29
30 45
31 61
32 2
33 18
34 34
35 50
36 6
37 22
38 38
39 54
40 10
41 26
42 42
43 58
44 14
45 30
46 46
47 62
48 3
49 19
50 35
51 51
52 7
53 23
54 39
55 55
56 11
57 27
58 43
59 59
60 15
61 31
62 47
63 63
64 1
65 65
66 129
67 193
68 17
69 81
70 145
71 209
72 33
73 97
74 161

List of values

[0, 1, 2, 3, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15, 1, 17, 33, 49, 5, 21, 37, 53, 9, 25, 41, 57, 13, 29, 45, 61, 2, 18, 34, 50, 6, 22, 38, 54, 10, 26, 42, 58, 14, 30, 46, 62, 3, 19, 35, 51, 7, 23, 39, 55, 11, 27, 43, 59, 15, 31, 47, 63, 1, 65, 129, 193, 17, 81, 145, 209, 33, 97, 161]

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