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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.

A030327 a(n) is the least k such that the base-2 representation of n begins at s(k) in A030324.

Table of values

n a(n)
1 1
2 2
3 1
4 9
5 2
6 1
7 4
8 9
9 37
10 17
11 2
12 8
13 1
14 4
15 31
16 44
17 9
18 41
19 37
20 51
21 17
22 6
23 2
24 8
25 36
26 16
27 1
28 60
29 4
30 31
31 160
32 109
33 44
34 22
35 9
36 41
37 155
38 37
39 261
40 97
41 51
42 115
43 17
44 6
45 14
46 2
47 29
48 141
49 8
50 40
51 36
52 50
53 16
54 5
55 1
56 85
57 60
58 49
59 4
60 59
61 31
62 161
63 160
64 479
65 109
66 142
67 44

List of values

[1, 2, 1, 9, 2, 1, 4, 9, 37, 17, 2, 8, 1, 4, 31, 44, 9, 41, 37, 51, 17, 6, 2, 8, 36, 16, 1, 60, 4, 31, 160, 109, 44, 22, 9, 41, 155, 37, 261, 97, 51, 115, 17, 6, 14, 2, 29, 141, 8, 40, 36, 50, 16, 5, 1, 85, 60, 49, 4, 59, 31, 161, 160, 479, 109, 142, 44]

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

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