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 A038902 #8 Jul 08 2025 22:28:02 %S A038902 2,3,11,17,19,31,37,41,43,47,61,73,79,89,97,101,113,127,131,137,157, %T A038902 163,191,193,211,229,251,263,269,271,293,307,311,317,331,337,359,367, %U A038902 379,389,409,421,433,443,449,461 %N A038902 Primes p such that 29 is not a square mod p. %H A038902 Vincenzo Librandi, <a href="/A038902/b038902.txt">Table of n, a(n) for n = 1..1000</a> %t A038902 Select[Prime@Range[120], JacobiSymbol[29, #] == -1 &] (* _Vincenzo Librandi_, Sep 09 2012 *) %K A038902 nonn %O A038902 1,1 %A A038902 _N. J. A. Sloane_ %E A038902 Offset changed from 0 to 1 by _Vincenzo Librandi_, Sep 09 2012