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.

A105571 Numbers m such that m - 2 and m + 2 are semiprimes.

Table of values

n a(n)
1 8
2 12
3 23
4 24
5 36
6 37
7 53
8 60
9 67
10 84
11 89
12 93
13 113
14 117
15 120
16 121
17 131
18 143
19 144
20 157
21 185
22 203
23 204
24 207
25 211
26 215
27 216
28 217
29 219
30 251
31 276
32 289
33 293
34 297
35 300
36 301
37 303
38 307
39 321
40 325
41 337
42 360
43 363
44 379
45 384
46 393
47 396
48 405
49 409
50 413
51 415
52 449
53 456
54 471
55 480

List of values

[8, 12, 23, 24, 36, 37, 53, 60, 67, 84, 89, 93, 113, 117, 120, 121, 131, 143, 144, 157, 185, 203, 204, 207, 211, 215, 216, 217, 219, 251, 276, 289, 293, 297, 300, 301, 303, 307, 321, 325, 337, 360, 363, 379, 384, 393, 396, 405, 409, 413, 415, 449, 456, 471, 480]