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.

A086930 Smallest b>1 such that in base b representation the n-th prime is a repunit.

Table of values

n a(n)
2 2
3 4
4 2
5 10
6 3
7 16
8 18
9 22
10 28
11 2
12 36
13 40
14 6
15 46
16 52
17 58
18 60
19 66
20 70
21 8
22 78
23 82
24 88
25 96
26 100
27 102
28 106
29 108
30 112
31 2
32 130
33 136
34 138
35 148
36 150
37 12
38 162
39 166
40 172
41 178
42 180
43 190
44 192
45 196
46 198
47 14
48 222
49 226
50 228
51 232
52 238
53 15
54 250
55 256
56 262
57 268
58 270
59 276
60 280
61 282

List of values

[2, 4, 2, 10, 3, 16, 18, 22, 28, 2, 36, 40, 6, 46, 52, 58, 60, 66, 70, 8, 78, 82, 88, 96, 100, 102, 106, 108, 112, 2, 130, 136, 138, 148, 150, 12, 162, 166, 172, 178, 180, 190, 192, 196, 198, 14, 222, 226, 228, 232, 238, 15, 250, 256, 262, 268, 270, 276, 280, 282]

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

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