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 A165463 #3 Mar 31 2012 13:21:19
%S A165463 475,775,847,931,1519,1975,2275,2299,2695,3475,3703,3775,4975,5047,
%T A165463 5203,5275,5491,5635,5887,6475,6775,6811,7267,7975,8275,9163,9295,
%U A165463 9475,9559,9583,9751,9775,10051,10927,10975,11191,11275,11875,12427
%N A165463 Numbers of the form 12n+7 for which Sum_{i=0..(4n+2)} J(i,12n+7) = 0, where J(i,m) is the Jacobi symbol.
%C A165463 Conjecture: a subset of A165603. See conjectures in A165460 and A165462.
%H A165463 A. Karttunen, <a href="/A165463/b165463.txt">Table of n, a(n) for n = 0..1000</a>
%Y A165463 a(n) = A004767(A165462(n)).
%K A165463 nonn
%O A165463 0,1
%A A165463 _Antti Karttunen_, Oct 06 2009