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.

A255746 Squarefree semiprimes n such that n+4 is also a squarefree semiprime.

Table of values

n a(n)
1 6
2 10
3 22
4 34
5 35
6 51
7 58
8 65
9 82
10 87
11 91
12 111
13 115
14 118
15 119
16 129
17 141
18 142
19 155
20 183
21 201
22 202
23 205
24 209
25 213
26 214
27 215
28 217
29 249
30 274
31 287
32 291
33 295
34 298
35 299
36 301
37 305
38 319
39 323
40 335
41 358
42 377
43 382
44 391
45 394
46 403
47 407
48 411
49 413
50 447
51 454
52 469
53 478
54 481

List of values

[6, 10, 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, 377, 382, 391, 394, 403, 407, 411, 413, 447, 454, 469, 478, 481]