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.

A087441 Numbers k such that for every prime divisor p of k, p-1 divides k-1.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 7
7 8
8 9
9 11
10 13
11 16
12 17
13 19
14 23
15 25
16 27
17 29
18 31
19 32
20 37
21 41
22 43
23 45
24 47
25 49
26 53
27 59
28 61
29 64
30 67
31 71
32 73
33 79
34 81
35 83
36 89
37 97
38 101
39 103
40 107
41 109
42 113
43 121
44 125
45 127
46 128
47 131
48 137
49 139
50 149
51 151
52 157
53 163
54 167
55 169
56 173
57 179
58 181
59 191
60 193
61 197
62 199
63 211

List of values

[1, 2, 3, 4, 5, 7, 8, 9, 11, 13, 16, 17, 19, 23, 25, 27, 29, 31, 32, 37, 41, 43, 45, 47, 49, 53, 59, 61, 64, 67, 71, 73, 79, 81, 83, 89, 97, 101, 103, 107, 109, 113, 121, 125, 127, 128, 131, 137, 139, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 193, 197, 199, 211]

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

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