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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.

A023216 Primes p such that 4*p + 9 is also prime.

Table of values

n a(n)
1 2
2 5
3 7
4 11
5 13
6 23
7 37
8 41
9 43
10 47
11 67
12 71
13 97
14 103
15 113
16 137
17 151
18 163
19 167
20 173
21 181
22 191
23 197
24 211
25 233
26 251
27 263
28 271
29 277
30 293
31 307
32 317
33 397
34 401
35 421
36 431
37 433
38 463
39 467
40 491
41 557
42 571
43 587
44 593
45 607
46 617
47 653
48 683
49 727
50 757
51 811
52 823
53 863
54 877
55 881
56 883
57 887
58 907

List of values

[2, 5, 7, 11, 13, 23, 37, 41, 43, 47, 67, 71, 97, 103, 113, 137, 151, 163, 167, 173, 181, 191, 197, 211, 233, 251, 263, 271, 277, 293, 307, 317, 397, 401, 421, 431, 433, 463, 467, 491, 557, 571, 587, 593, 607, 617, 653, 683, 727, 757, 811, 823, 863, 877, 881, 883, 887, 907]