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.

A224872 Numbers k such that prime(k)*pi(k)+1 is prime.

Table of values

n a(n)
1 3
2 15
3 20
4 29
5 58
6 63
7 80
8 90
9 92
10 93
11 96
12 116
13 125
14 126
15 143
16 151
17 155
18 156
19 164
20 182
21 185
22 189
23 210
24 230
25 251
26 255
27 256
28 268
29 274
30 275
31 294
32 298
33 319
34 323
35 324
36 325
37 328
38 330
39 343
40 360
41 362
42 399
43 400
44 416
45 425
46 429
47 437
48 446
49 457
50 463
51 466
52 480
53 497
54 505
55 506

List of values

[3, 15, 20, 29, 58, 63, 80, 90, 92, 93, 96, 116, 125, 126, 143, 151, 155, 156, 164, 182, 185, 189, 210, 230, 251, 255, 256, 268, 274, 275, 294, 298, 319, 323, 324, 325, 328, 330, 343, 360, 362, 399, 400, 416, 425, 429, 437, 446, 457, 463, 466, 480, 497, 505, 506]