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.

A175648 Semiprimes m such that m+4 is also semiprime.

Table of values

n a(n)
1 6
2 10
3 21
4 22
5 34
6 35
7 51
8 58
9 65
10 82
11 87
12 91
13 111
14 115
15 118
16 119
17 129
18 141
19 142
20 155
21 183
22 201
23 202
24 205
25 209
26 213
27 214
28 215
29 217
30 249
31 274
32 287
33 291
34 295
35 298
36 299
37 301
38 305
39 319
40 323
41 335
42 358
43 361
44 377
45 382
46 391
47 394
48 403
49 407
50 411
51 413
52 447
53 454
54 469
55 478

List of values

[6, 10, 21, 22, 34, 35, 51, 58, 65, 82, 87, 91, 111, 115, 118, 119, 129, 141, 142, 155, 183, 201, 202, 205, 209, 213, 214, 215, 217, 249, 274, 287, 291, 295, 298, 299, 301, 305, 319, 323, 335, 358, 361, 377, 382, 391, 394, 403, 407, 411, 413, 447, 454, 469, 478]