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 A038987 #13 Jul 08 2025 22:38:10 %S A038987 2,3,11,31,43,47,53,61,73,79,89,97,101,103,109,113,151,163,167,191, %T A038987 193,197,227,229,241,269,283,293,307,313,353,379,389,397,419,421,431, %U A038987 449,461,463,467,479,487,491,503 %N A038987 Primes p such that 97 is a square mod p. %H A038987 Vincenzo Librandi, <a href="/A038987/b038987.txt">Table of n, a(n) for n = 1..1000</a> %t A038987 Select[Prime[Range[120]], ! JacobiSymbol[97, #] == -1 &] (* _Vincenzo Librandi_, Sep 08 2012 *) %K A038987 nonn %O A038987 1,1 %A A038987 _N. J. A. Sloane_ %E A038987 Incorrect comment deleted by _Philippe Deléham_, Sep 16 2009