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 A038882 #33 Jul 04 2023 10:11:28 %S A038882 2,3,13,17,23,29,31,41,47,59,61,67,71,73,101,103,109,149,163,173,179, %T A038882 191,193,197,199,223,233,241,251,277,281,293,311,331,337,349,367,373, %U A038882 379,383,409,419,443,457,461,463 %N A038882 Primes that are not in A038881. %C A038882 Also, only entries p == 1 (mod 4) of the sequence are not squares mod 11 (from the quadratic reciprocity law). - _Lekraj Beedassy_, Jul 21 2004 %C A038882 Except for 2, inert primes in Z[sqrt(11)]. 2 splits as (-1)*(3 - sqrt(11))*(3 + sqrt(11)). Cf. A296936. - _Alonso del Arte_, Jan 02 2015 %H A038882 Vincenzo Librandi, <a href="/A038882/b038882.txt">Table of n, a(n) for n = 1..1000</a> %t A038882 Select[Prime@Range[120], JacobiSymbol[11, #] == -1 &] (* _Vincenzo Librandi_, Sep 08 2012 *) %o A038882 (PARI) isok(p) = isprime(p) && !((p%2) && issquare(Mod(11, p))); \\ _Michel Marcus_, Jul 04 2023 %Y A038882 Cf. A019339, A038881, A296936. %K A038882 nonn %O A038882 1,1 %A A038882 _N. J. A. Sloane_ %E A038882 Offset changed from 0 to 1 by _Vincenzo Librandi_, Sep 08 2012 %E A038882 Definition edited by _N. J. A. Sloane_, Jul 04 2023