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.

A255921 Bases b for which no primes p with p < b exist such that p is a base-b Wieferich prime.

Table of values

n a(n)
1 2
2 3
3 4
4 6
5 11
6 12
7 14
8 15
9 16
10 20
11 34
12 36
13 39
14 47
15 52
16 56
17 58
18 59
19 66
20 72
21 83
22 84
23 86
24 87
25 88
26 90
27 92
28 95
29 96
30 102
31 103
32 104
33 106
34 108
35 111
36 114
37 119
38 123
39 135
40 139
41 140
42 142
43 144
44 156
45 159
46 160
47 162
48 167
49 171
50 175
51 180
52 183
53 186
54 187
55 194
56 198
57 200
58 203
59 204

List of values

[2, 3, 4, 6, 11, 12, 14, 15, 16, 20, 34, 36, 39, 47, 52, 56, 58, 59, 66, 72, 83, 84, 86, 87, 88, 90, 92, 95, 96, 102, 103, 104, 106, 108, 111, 114, 119, 123, 135, 139, 140, 142, 144, 156, 159, 160, 162, 167, 171, 175, 180, 183, 186, 187, 194, 198, 200, 203, 204]

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

Content is available under The OEIS End-User License Agreement.