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 A127238 #2 Mar 30 2012 18:59:19
%S A127238 1,1,2,2,2,2,2,2,3,3,4,3,6,4,4,5,4,3,4,3,6,8,6,6,6,9,10,8,8,12,7,7,7,
%T A127238 7,7,6,8,13,12,8,7,12,8,13,14,12,15,13,12,12,13,14,13,12,15,12,12,12,
%U A127238 15,14,17,17,22,17,22,14,15
%N A127238 Diagonal sums of Thue-Morse binomial triangle A127236.
%F A127238 a(n)=sum{k=0..floor(n/2), A010060(binomial(n-k,k))}
%K A127238 easy,nonn
%O A127238 0,3
%A A127238 _Paul Barry_, Jan 10 2007