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 A114004 #2 Mar 30 2012 18:59:12 %S A114004 1,-2,1,-2,0,1,2,-2,0,1,-2,0,0,0,1,6,-2,-2,0,0,1,-2,0,0,0,0,0,1,-2,2, %T A114004 0,-2,0,0,0,1,2,0,-2,0,0,0,0,0,1,6,-2,0,0,-2,0,0,0,0,1,-2,0,0,0,0,0,0, %U A114004 0,0,0,1,-10,6,2,-2,0,-2,0,0,0,0,0,1,-2,0,0,0,0,0,0,0,0,0,0,0,1,6,-2,0,0,0,0,-2,0,0,0,0,0,0,1,6,0,-2,0,-2,0,0,0,0,0,0,0 %N A114004 Inverse of triangle A114002. %C A114004 Row sums are A114006. First column is A114005. %e A114004 Triangle begins %e A114004 1; %e A114004 -2, 1; %e A114004 -2, 0, 1; %e A114004 2,-2, 0, 1; %e A114004 -2, 0, 0, 0, 1; %e A114004 6,-2,-2, 0, 0, 1; %e A114004 -2, 0, 0, 0, 0, 0, 1; %e A114004 -2, 2, 0,-2, 0, 0, 0, 1; %e A114004 2, 0,-2, 0, 0, 0, 0, 0, 1; %e A114004 6,-2, 0, 0,-2, 0, 0, 0, 0, 1; %K A114004 sign,tabl %O A114004 0,2 %A A114004 _Paul Barry_, Nov 12 2005