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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.

A051647 Primes p such that 210*p + 1 is also prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 17
8 23
9 29
10 47
11 53
12 59
13 67
14 73
15 83
16 89
17 101
18 137
19 139
20 157
21 163
22 179
23 181
24 191
25 193
26 223
27 229
28 251
29 271
30 277
31 281
32 313
33 317
34 347
35 349
36 353
37 359
38 401
39 419
40 421
41 431
42 433
43 449
44 457
45 463
46 479
47 523
48 577
49 599
50 601
51 631
52 653
53 701
54 709
55 719
56 727

List of values

[2, 3, 5, 7, 11, 13, 17, 23, 29, 47, 53, 59, 67, 73, 83, 89, 101, 137, 139, 157, 163, 179, 181, 191, 193, 223, 229, 251, 271, 277, 281, 313, 317, 347, 349, 353, 359, 401, 419, 421, 431, 433, 449, 457, 463, 479, 523, 577, 599, 601, 631, 653, 701, 709, 719, 727]