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 A105595 #5 Nov 28 2014 16:53:38
%S A105595 1,1,3,1,3,3,3,1,3,3,3,3,3,7,3,9,1,3,3,5,5,7,9,3,3,7,9,15,7,13,21,13,
%T A105595 1,1,5,1,3,5,7,11,3,3,7,13,5,11,13,19,3,7,7,7,7,19,9,25,7,13,21,23,15,
%U A105595 27,19,39,1,1,3,1,5,5,3,9,3,5,11,9,9,13,19,21,3,7,7,9,7,15,17,19,7,15,21
%N A105595 Row sums of number triangle A105594.
%C A105595 Conjecture : all terms are odd.
%F A105595 a(n)=sum{k=0..n, mod(sum{j=0..n, abs(mu(binomial(n, j)))*mod(binomial(j, k), 2)}, 2)}
%p A105595 A105595 := proc(n)
%p A105595 add(A105594(n,k),k=0..n) ;
%p A105595 end proc: # _R. J. Mathar_, Nov 28 2014
%Y A105595 Cf. A105596.
%K A105595 easy,nonn
%O A105595 0,3
%A A105595 _Paul Barry_, Apr 14 2005