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 A115136 #5 Nov 10 2013 12:26:43 %S A115136 1,4,21,124,773,4988,33029,223228,1533957,10686460,75309061,535920636, %T A115136 3845881861,27800469500,202244161541,1479594737660,10878806654981, %U A115136 80345708888060,595788935725061,4434080431079420,33109442115403781 %N A115136 Row sums of triangle A113647. %F A115136 a(n)=sum(A113647(n, m), m=1..n+1), n>=0. %F A115136 Conjecture: (n+2)*a(n) +(-11*n-4)*a(n-1) +(25*n-42)*a(n-2) +5*(-n+12)*a(n-3) +2*(-13*n+20)*a(n-4) +8*(2*n-7)*a(n-5)=0. - _R. J. Mathar_, Nov 10 2013 %K A115136 nonn,easy %O A115136 0,2 %A A115136 _Wolfdieter Lang_, Jan 13 2006