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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.

A344620 Primes p such that there is no positive integer a with 2*a, a^2-1 and a^2+1 not only smaller than p but also quadratic residues modulo p.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 17
7 19
8 23
9 29
10 31
11 37
12 41
13 43
14 47
15 53
16 79
17 89
18 97
19 101
20 113
21 151
22 173
23 281
24 283
25 313
26 461
27 739
28 827

List of values

[2, 3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 79, 89, 97, 101, 113, 151, 173, 281, 283, 313, 461, 739, 827]

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

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