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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.

A111153 Sophie Germain semiprimes: semiprimes n such that 2n+1 is also a semiprime.

Table of values

n a(n)
1 4
2 10
3 25
4 34
5 38
6 46
7 55
8 57
9 77
10 91
11 93
12 106
13 118
14 123
15 129
16 133
17 143
18 145
19 159
20 161
21 169
22 177
23 185
24 201
25 203
26 205
27 206
28 213
29 218
30 226
31 235
32 259
33 267
34 289
35 291
36 295
37 298
38 305
39 314
40 327
41 334
42 335
43 339
44 358
45 361
46 365
47 377
48 381
49 394
50 395
51 403
52 407
53 415
54 417

List of values

[4, 10, 25, 34, 38, 46, 55, 57, 77, 91, 93, 106, 118, 123, 129, 133, 143, 145, 159, 161, 169, 177, 185, 201, 203, 205, 206, 213, 218, 226, 235, 259, 267, 289, 291, 295, 298, 305, 314, 327, 334, 335, 339, 358, 361, 365, 377, 381, 394, 395, 403, 407, 415, 417]