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 A165927 #3 Mar 30 2012 17:34:11 %S A165927 0,0,0,0,0,0,0,0,1,1,1,1,1,1,2,2,1,2,3,3,3,2,1,3,4,4,5,5,4,6,3,7,6,5, %T A165927 8,7,5,5,6,6,4,7,7,7,9,5,4,11,8,10,12,10,9,10,12,11,12,10,10,13,9,8, %U A165927 15,18,16,13,13,14,12,15,6,16,10,13,18,15,19,16,11,21,18,14,14,20,20,15 %N A165927 a(n) = number of square-full quadratic non-residues of n. %H A165927 C. H. Gribble, <a href="/A165927/b165927.txt">Table of n, a(n) for n=1,...,1000</a>. %Y A165927 Cf: A165925 %K A165927 nonn %O A165927 1,15 %A A165927 _Christopher Hunt Gribble_, Sep 30 2009