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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.

A283597 Numbers n such that both 6n+1 and 6n+7 are semiprimes.

Table of values

n a(n)
1 8
2 14
3 19
4 41
5 42
6 43
7 48
8 49
9 59
10 74
11 84
12 85
13 88
14 92
15 93
16 97
17 108
18 113
19 116
20 132
21 139
22 144
23 148
24 149
25 157
26 158
27 159
28 162
29 163
30 189
31 190
32 193
33 198
34 209
35 210
36 211
37 222
38 223
39 224
40 225
41 226
42 227
43 231
44 234
45 235
46 250
47 251
48 259
49 264
50 272
51 280
52 285
53 306
54 307
55 315
56 316
57 317
58 318
59 319
60 320
61 323
62 326
63 327
64 340
65 345
66 349
67 358
68 361
69 368
70 376
71 386
72 387
73 388

List of values

[8, 14, 19, 41, 42, 43, 48, 49, 59, 74, 84, 85, 88, 92, 93, 97, 108, 113, 116, 132, 139, 144, 148, 149, 157, 158, 159, 162, 163, 189, 190, 193, 198, 209, 210, 211, 222, 223, 224, 225, 226, 227, 231, 234, 235, 250, 251, 259, 264, 272, 280, 285, 306, 307, 315, 316, 317, 318, 319, 320, 323, 326, 327, 340, 345, 349, 358, 361, 368, 376, 386, 387, 388]