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.
%I A191049 #13 Sep 08 2022 08:45:57
%S A191049 3,11,13,19,23,29,31,53,67,73,101,103,109,113,127,149,157,179,181,211,
%T A191049 223,227,229,241,271,293,317,331,337,347,353,359,367,397,401,409,421,
%U A191049 431,433,449,487,499,509,547,557,563,569,571,587,599,607,617,631,643
%N A191049 Primes p that have Kronecker symbol (p|82) = 1.
%C A191049 Originally incorrectly named "primes which are squares mod 82", which is sequence A038919. - _M. F. Hasler_, Jan 15 2016
%H A191049 Vincenzo Librandi, <a href="/A191049/b191049.txt">Table of n, a(n) for n = 1..1000</a>
%t A191049 Select[Prime[Range[200]], JacobiSymbol[#,82]==1&]
%o A191049 (Magma) [p: p in PrimesUpTo(643) | KroneckerSymbol(p, 82) eq 1]; // _Vincenzo Librandi_, Sep 11 2012
%o A191049 (PARI) select(p->kronecker(p, 82)==1&&isprime(p), [1..1000]) \\ This is to provide a generic characteristic function ("is_A191049") as 1st arg of select(), there are other ways to produce the sequence more efficiently. - _M. F. Hasler_, Jan 15 2016
%Y A191049 Cf. A191017, A191018, A191020, A191023, A191025, A191026, A191028, A191029, A191032, A191034, A191036, A191037, A191040, A191042, A191043, A191046, A191047.
%K A191049 nonn,easy
%O A191049 1,1
%A A191049 _T. D. Noe_, May 25 2011
%E A191049 Definition corrected (following an observation by _David Broadhurst_) by _M. F. Hasler_, Jan 15 2016