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 A374187 #7 Apr 25 2025 23:39:12 %S A374187 3,3,7,7,7,3,3,3,11,3,7,3,3,3,7,7,3,3,3,3,7,3,7,3,3,7,3,7,7,3,3,3,7,3, %T A374187 3,3,3,7,7,3,3,3,3,3,7,3,7,3,3,7,11,7,3,3,3,3,7,3,7,3,3,3,11,7,3,3,3, %U A374187 3,7,3,3,3,7,3,7,7,3,3,3,7,3,3,3,3,7,3 %N A374187 Least a of the form 4*n - 1 (n>=1) such that there is a positive integer k so that K(a / k) != K((-1)^floor(k/2)*k / a), where K denotes the Kronecker symbol (A372728). %C A374187 These values witness the correctness of A374189. They seem to grow very slowly. %Y A374187 Cf. A374189, A374188, A372728. %K A374187 nonn %O A374187 1,1 %A A374187 _Peter Luschny_, Jul 02 2024