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 A116879 #2 Mar 31 2012 13:20:12 %S A116879 1,10,83,656,5101,39446,304615,2353180,18198497,140935202,1093058523, %T A116879 8489861160,66033483733,514279211054,4010208001999,31306199597108, %U A116879 244654627880905,1913827008446522,14984671523766211 %N A116879 Row sums of triangle A116872. %F A116879 a(n)=sum(A116872(n,m),m=1..n),n>=1. %K A116879 nonn,easy %O A116879 1,2 %A A116879 _Wolfdieter Lang_, Mar 24 2006