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 A127822 #2 Mar 30 2012 18:59:19
%S A127822 1,0,1,0,1,1,0,1,1,1,0,0,0,1,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,1,1,1,0,0,
%T A127822 1,1,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,1,1,0,1,
%U A127822 1,0,1,1,0,0,0,0,1,1,0,0,0,0,0,0
%N A127822 Triangle whose row sums modulo 2 give the Fredholm-Rueppel sequence A036987.
%C A127822 Row sums are A111982. Unsigned version of A111967.
%F A127822 G.f. of k-th column is x^k*if(k=0,1,x*sum{j=0..\infty, x^(-2^(j/2)*(((k+2)/(2*sqrt(2))-(k+1))(-1)^j-(k+2)/(2*sqrt(2))-(k+1))-(k+2))+1+x}
%e A127822 Triangle begins
%e A127822 1,
%e A127822 0, 1,
%e A127822 0, 1, 1,
%e A127822 0, 1, 1, 1,
%e A127822 0, 0, 0, 1, 1,
%e A127822 0, 1, 1, 0, 1, 1,
%e A127822 0, 0, 0, 0, 0, 1, 1,
%e A127822 0, 1, 1, 1, 0, 0, 1, 1,
%e A127822 0, 0, 0, 0, 0, 0, 0, 1, 1,
%e A127822 0, 0, 0, 1, 1, 0, 0, 0, 1, 1,
%e A127822 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
%e A127822 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1,
%e A127822 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1
%K A127822 easy,nonn,tabl
%O A127822 0,1
%A A127822 _Paul Barry_, Jan 30 2007