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 A038890 #17 Jul 08 2025 22:26:47 %S A038890 3,5,7,11,23,29,31,37,41,61,71,73,79,97,107,109,113,131,139,163,167, %T A038890 173,181,193,197,199,211,227,233,241,269,277,283,311,313,317,337,347, %U A038890 367,379,397,401,419,431,439,449 %N A038890 Primes p such that 17 is not a square mod p. %C A038890 Inert rational primes in the field Q(sqrt(17)). - _N. J. A. Sloane_, Dec 26 2017 %C A038890 Also, primes p that are not squares mod 17 (from the quadratic reciprocity law). - _Lekraj Beedassy_, Jul 13 2004 %H A038890 Vincenzo Librandi, <a href="/A038890/b038890.txt">Table of n, a(n) for n = 1..1000</a> %t A038890 Select[Prime@Range[120], JacobiSymbol[17, #] == -1 &] (* _Vincenzo Librandi_, Sep 08 2012 *) %K A038890 nonn %O A038890 1,1 %A A038890 _N. J. A. Sloane_ %E A038890 Offset changed from 0 to 1 by _Vincenzo Librandi_, Sep 08 2012