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 A127829 #2 Mar 30 2012 18:59:19 %S A127829 1,0,1,0,0,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,1,0,0,0,0,1,0,1,0,0,0,0,0,1, %T A127829 1,1,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,1,0,0,1 %N A127829 Number triangle mod(C(floor(k/2),n-k),2). %C A127829 Row sums are A127830. Inverse is A127831. %F A127829 T(n,k)=mod(A124788(n,k),2) %e A127829 Triangle begins %e A127829 1, %e A127829 0, 1, %e A127829 0, 0, 1, %e A127829 0, 0, 1, 1, %e A127829 0, 0, 0, 1, 1, %e A127829 0, 0, 0, 0, 0, 1, %e A127829 0, 0, 0, 0, 1, 0, 1, %e A127829 0, 0, 0, 0, 0, 1, 1, 1, %e A127829 0, 0, 0, 0, 0, 0, 1, 1, 1, %e A127829 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, %e A127829 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1 %K A127829 easy,nonn,tabl %O A127829 0,1 %A A127829 _Paul Barry_, Feb 01 2007