cp's OEIS Frontend

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.

A090517 Least k such that floor[(10^n)/k] is prime.

Table of values

n a(n)
1 2
2 9
3 12
4 13
5 28
6 19
7 7
8 27
9 12
10 13
11 17
12 74
13 17
14 14
15 82
16 66
17 36
18 44
19 9
20 36
21 21
22 13
23 9
24 90
25 7
26 19
27 149
28 51
29 321
30 35
31 12
32 14
33 140
34 13
35 28
36 42
37 34
38 36
39 153
40 155
41 133
42 46
43 73
44 106
45 162
46 109
47 122
48 42
49 62
50 422
51 29
52 231
53 38
54 34
55 340
56 295
57 151
58 197
59 94
60 19
61 17
62 83
63 131
64 66
65 36

List of values

[2, 9, 12, 13, 28, 19, 7, 27, 12, 13, 17, 74, 17, 14, 82, 66, 36, 44, 9, 36, 21, 13, 9, 90, 7, 19, 149, 51, 321, 35, 12, 14, 140, 13, 28, 42, 34, 36, 153, 155, 133, 46, 73, 106, 162, 109, 122, 42, 62, 422, 29, 231, 38, 34, 340, 295, 151, 197, 94, 19, 17, 83, 131, 66, 36]

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

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