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 A119933 #2 Mar 31 2012 13:20:12 %S A119933 1,16,243,1792,56125,92016,5260591,28475392,290387673,445906000, %T A119933 59350089931,64786127616,11861260199893,4143106927792,3092227583175, %U A119933 22046047952896,6652851946041649,12011298089015952,4425675600220359715 %N A119933 Row sums of triangle A119932 (denominator triangle for certain rationals). %F A119933 a(i)=sum( A119932(i,j),j=1..i),i>=1. %K A119933 nonn,easy %O A119933 1,2 %A A119933 _Wolfdieter Lang_, Jul 20 2006