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.

A119681 Odd numbers n such that 2n-1 is prime.

Table of values

n a(n)
1 3
2 7
3 9
4 15
5 19
6 21
7 27
8 31
9 37
10 45
11 49
12 51
13 55
14 57
15 69
16 75
17 79
18 87
19 91
20 97
21 99
22 115
23 117
24 121
25 129
26 135
27 139
28 141
29 147
30 157
31 159
32 169
33 175
34 177
35 187
36 195
37 199
38 201
39 205
40 211
41 217
42 225
43 229
44 231
45 255
46 261
47 271
48 279
49 285
50 289
51 297
52 301
53 307
54 309
55 321
56 327
57 331

List of values

[3, 7, 9, 15, 19, 21, 27, 31, 37, 45, 49, 51, 55, 57, 69, 75, 79, 87, 91, 97, 99, 115, 117, 121, 129, 135, 139, 141, 147, 157, 159, 169, 175, 177, 187, 195, 199, 201, 205, 211, 217, 225, 229, 231, 255, 261, 271, 279, 285, 289, 297, 301, 307, 309, 321, 327, 331]