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 A165586 #6 May 17 2017 02:48:37
%S A165586 0,1,-1,-1,1,1,1,1,-1,1,-1,1,-1,1,-1,-1,1,1,-1,-1,1,-1,-1,1,1,1,-1,-1,
%T A165586 1,1,1,1,-1,-1,-1,1,1,1,1,-1,-1,-1,1,1,1,1,-1,1,-1,1,-1,-1,1,-1,1,1,
%U A165586 -1,1,-1,-1,-1,1,-1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,1,1,1
%N A165586 Legendre symbol (n,514229).
%C A165586 514229 is the 9th Fibonacci prime, A005478(9) = A000045(29).
%H A165586 A. Karttunen, <a href="/A165586/b165586.txt">Table of n, a(n) for n = 0..514229</a>
%t A165586 Table[JacobiSymbol[n, 514229], {n, 0, 100}] (* _Jean-François Alcover_, May 17 2017 *)
%Y A165586 Partial sums: A165587.
%K A165586 sign,mult
%O A165586 0,1
%A A165586 _Antti Karttunen_, Sep 22 2009