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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.

A252090 Primes p such that p + 28 is also prime.

Table of values

n a(n)
1 3
2 13
3 19
4 31
5 43
6 61
7 73
8 79
9 103
10 109
11 139
12 151
13 163
14 199
15 211
16 223
17 229
18 241
19 283
20 331
21 373
22 421
23 433
24 439
25 463
26 541
27 571
28 613
29 619
30 631
31 673
32 691
33 733
34 769
35 811
36 829
37 853
38 859
39 883
40 919
41 991
42 1021
43 1033
44 1063
45 1069
46 1123
47 1153
48 1201
49 1231
50 1249

List of values

[3, 13, 19, 31, 43, 61, 73, 79, 103, 109, 139, 151, 163, 199, 211, 223, 229, 241, 283, 331, 373, 421, 433, 439, 463, 541, 571, 613, 619, 631, 673, 691, 733, 769, 811, 829, 853, 859, 883, 919, 991, 1021, 1033, 1063, 1069, 1123, 1153, 1201, 1231, 1249]