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.

A379140 Numbers k such that the greatest prime < 10^k and the least prime > 10^k share no decimal digits.

Table of values

n a(n)
1 1
2 2
3 8
4 11
5 15
6 16
7 17
8 18
9 21
10 25
11 26
12 30
13 40
14 44
15 46
16 47
17 50
18 51
19 53
20 55
21 60
22 63
23 64
24 74
25 77
26 81
27 86
28 88
29 89
30 93
31 95
32 101
33 123
34 130
35 131
36 133
37 134
38 140
39 152
40 154
41 158
42 161
43 164
44 166
45 176
46 181
47 189
48 192
49 198
50 209
51 214
52 215
53 233
54 245
55 264
56 268
57 274
58 291
59 293
60 295
61 297
62 324
63 326
64 334
65 352
66 357

List of values

[1, 2, 8, 11, 15, 16, 17, 18, 21, 25, 26, 30, 40, 44, 46, 47, 50, 51, 53, 55, 60, 63, 64, 74, 77, 81, 86, 88, 89, 93, 95, 101, 123, 130, 131, 133, 134, 140, 152, 154, 158, 161, 164, 166, 176, 181, 189, 192, 198, 209, 214, 215, 233, 245, 264, 268, 274, 291, 293, 295, 297, 324, 326, 334, 352, 357]

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

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