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.

A256382 Numbers n such that n-4 and n+4 are semiprimes.

Table of values

n a(n)
1 10
2 18
3 29
4 30
5 42
6 53
7 61
8 73
9 78
10 81
11 89
12 90
13 91
14 115
15 119
16 125
17 137
18 138
19 162
20 165
21 173
22 181
23 198
24 205
25 209
26 210
27 213
28 217
29 222
30 258
31 263
32 291
33 295
34 299
35 305
36 323
37 325
38 330
39 331
40 390
41 399
42 407
43 411
44 441
45 449
46 450
47 462
48 477
49 485
50 489
51 493
52 497
53 501
54 515
55 523

List of values

[10, 18, 29, 30, 42, 53, 61, 73, 78, 81, 89, 90, 91, 115, 119, 125, 137, 138, 162, 165, 173, 181, 198, 205, 209, 210, 213, 217, 222, 258, 263, 291, 295, 299, 305, 323, 325, 330, 331, 390, 399, 407, 411, 441, 449, 450, 462, 477, 485, 489, 493, 497, 501, 515, 523]