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 A067302 #6 Feb 10 2014 01:23:49 %S A067302 1,3,18,160,1752,21504,282304,3867840,54547200,785255680,11478167040, %T A067302 169748686848,2533556365312,38094656593920,576271774875648, %U A067302 8761529890717696,133776598692003840,2050020136793604096 %N A067302 Row sums of triangle A067298 and of A067304. %F A067302 a(n)=sum(A067298(n, m), m=0..n ). %F A067302 Bisection: a(2*k)= (k+1)*A067297(2*k)=: A067303(k), a(2*k+1)= (2*k+3)*A067297(2*k+1)/2 =: A067322(k), k>=0. %F A067302 G.f.: ge(x^2) + x*go(x^2) with ge(x) g.f. of A067303 and go(x) g.f. of A067322. %K A067302 nonn,easy %O A067302 0,2 %A A067302 _Wolfdieter Lang_, Feb 05 2002