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.

A271550 Numbers n such that n is a squarefree semiprime (i.e., omega(n) = 2 = Omega(n)) and phi(n) + 1 is a prime.

Table of values

n a(n)
1 6
2 10
3 14
4 21
5 22
6 26
7 34
8 38
9 46
10 55
11 57
12 58
13 62
14 74
15 77
16 82
17 86
18 91
19 93
20 94
21 95
22 106
23 111
24 115
25 118
26 119
27 122
28 133
29 134
30 142
31 145
32 146
33 158
34 166
35 178
36 194
37 202
38 206
39 209
40 214
41 217
42 218
43 221
44 226
45 237
46 254
47 262
48 274
49 278
50 287
51 291
52 295
53 298
54 302
55 305
56 314
57 319
58 326
59 329

List of values

[6, 10, 14, 21, 22, 26, 34, 38, 46, 55, 57, 58, 62, 74, 77, 82, 86, 91, 93, 94, 95, 106, 111, 115, 118, 119, 122, 133, 134, 142, 145, 146, 158, 166, 178, 194, 202, 206, 209, 214, 217, 218, 221, 226, 237, 254, 262, 274, 278, 287, 291, 295, 298, 302, 305, 314, 319, 326, 329]