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.

A124936 Numbers k such that k - 1 and k + 1 are semiprimes.

Table of values

n a(n)
1 5
2 34
3 50
4 56
5 86
6 92
7 94
8 120
9 122
10 142
11 144
12 160
13 184
14 186
15 202
16 204
17 214
18 216
19 218
20 220
21 236
22 248
23 266
24 288
25 290
26 300
27 302
28 304
29 320
30 322
31 328
32 340
33 392
34 394
35 412
36 414
37 416
38 446
39 452
40 470
41 472
42 516
43 518
44 528
45 534
46 536
47 544
48 552
49 580
50 582
51 590
52 634
53 668

List of values

[5, 34, 50, 56, 86, 92, 94, 120, 122, 142, 144, 160, 184, 186, 202, 204, 214, 216, 218, 220, 236, 248, 266, 288, 290, 300, 302, 304, 320, 322, 328, 340, 392, 394, 412, 414, 416, 446, 452, 470, 472, 516, 518, 528, 534, 536, 544, 552, 580, 582, 590, 634, 668]