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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.

A340865 Primes p such that (p^2 + 1)/2 and 2*p^2 - 1 are also prime.

Table of values

n a(n)
1 3
2 11
3 59
4 181
5 199
6 379
7 409
8 571
9 739
10 1039
11 1439
12 2239
13 2269
14 2351
15 2381
16 2671
17 2719
18 2789
19 3049
20 3529
21 4021
22 4201
23 4721
24 4999
25 5431
26 5531
27 5839
28 6329
29 6619
30 8329
31 9241
32 9419
33 9631
34 9689
35 10151
36 11329
37 11551
38 12071
39 12421
40 13339
41 14489
42 15091
43 17419
44 18301

List of values

[3, 11, 59, 181, 199, 379, 409, 571, 739, 1039, 1439, 2239, 2269, 2351, 2381, 2671, 2719, 2789, 3049, 3529, 4021, 4201, 4721, 4999, 5431, 5531, 5839, 6329, 6619, 8329, 9241, 9419, 9631, 9689, 10151, 11329, 11551, 12071, 12421, 13339, 14489, 15091, 17419, 18301]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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