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.

A367947 Semiprimes s such that 2*s+1 is prime.

Table of values

n a(n)
1 6
2 9
3 14
4 15
5 21
6 26
7 33
8 35
9 39
10 51
11 65
12 69
13 74
14 86
15 95
16 111
17 119
18 134
19 141
20 146
21 155
22 158
23 183
24 194
25 209
26 215
27 219
28 221
29 249
30 254
31 278
32 299
33 303
34 309
35 321
36 323
37 326
38 329
39 341
40 371
41 386
42 393
43 398
44 411
45 413
46 453
47 473
48 485
49 515
50 519
51 543
52 545
53 551
54 554
55 581
56 611
57 614

List of values

[6, 9, 14, 15, 21, 26, 33, 35, 39, 51, 65, 69, 74, 86, 95, 111, 119, 134, 141, 146, 155, 158, 183, 194, 209, 215, 219, 221, 249, 254, 278, 299, 303, 309, 321, 323, 326, 329, 341, 371, 386, 393, 398, 411, 413, 453, 473, 485, 515, 519, 543, 545, 551, 554, 581, 611, 614]