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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.

A030320 Least k such that the base-2 representation of n begins at s(k), where s=A030317.

Table of values

n a(n)
1 1
2 4
3 1
4 10
5 4
6 3
7 1
8 26
9 10
10 36
11 4
12 9
13 3
14 2
15 1
16 66
17 26
18 78
19 10
20 90
21 36
22 38
23 4
24 25
25 9
26 35
27 3
28 8
29 2
30 1
31 6
32 162
33 66
34 176
35 26
36 190
37 78
38 10
39 31
40 218
41 90
42 232
43 36
44 81
45 38
46 98
47 4
48 65
49 25
50 77
51 9
52 89
53 35
54 101
55 3
56 24
57 8
58 34
59 2
60 7
61 1
62 6
63 21
64 386
65 162
66 402
67 66
68 418
69 176

List of values

[1, 4, 1, 10, 4, 3, 1, 26, 10, 36, 4, 9, 3, 2, 1, 66, 26, 78, 10, 90, 36, 38, 4, 25, 9, 35, 3, 8, 2, 1, 6, 162, 66, 176, 26, 190, 78, 10, 31, 218, 90, 232, 36, 81, 38, 98, 4, 65, 25, 77, 9, 89, 35, 101, 3, 24, 8, 34, 2, 7, 1, 6, 21, 386, 162, 402, 66, 418, 176]

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

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