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.

A174166 Composites n such that 2*n-1 is prime.

Table of values

n a(n)
1 4
2 6
3 9
4 10
5 12
6 15
7 16
8 21
9 22
10 24
11 27
12 30
13 34
14 36
15 40
16 42
17 45
18 49
19 51
20 52
21 54
22 55
23 57
24 64
25 66
26 69
27 70
28 75
29 76
30 82
31 84
32 87
33 90
34 91
35 96
36 99
37 100
38 106
39 112
40 114
41 115
42 117
43 120
44 121
45 126
46 129
47 132
48 135
49 136
50 141
51 142
52 147
53 154
54 156
55 159
56 166
57 169
58 174
59 175
60 177
61 180

List of values

[4, 6, 9, 10, 12, 15, 16, 21, 22, 24, 27, 30, 34, 36, 40, 42, 45, 49, 51, 52, 54, 55, 57, 64, 66, 69, 70, 75, 76, 82, 84, 87, 90, 91, 96, 99, 100, 106, 112, 114, 115, 117, 120, 121, 126, 129, 132, 135, 136, 141, 142, 147, 154, 156, 159, 166, 169, 174, 175, 177, 180]