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 A043553 #7 Mar 31 2012 13:19:58 %S A043553 1,7,43,250,1420,7990,44800,250900,1404700,7864000,44026000,246481000, %T A043553 1379950000,7725850000,43254430000,242167300000,1355815600000, %U A043553 7590769900000,42498250000000,237933871000000,1332114307000000 %N A043553 Row sums of convolution triangle A030524. %H A043553 W. Lang, <a href="http://www.cs.uwaterloo.ca/journals/JIS/index.html">On generalizations of Stirling number triangles</a>, J. Integer Seqs., Vol. 3 (2000), #00.2.4. %F A043553 G.f.: x*(1-3*x+3*x^2)/(1-10*x+30*x^2-30*x^3)= g1(4, x)/(1-g1(4, x)), g1(4, x) := x*(1-3*x+3*x^2)/(1-3*x)^3 (G.f. first column of A030524). %K A043553 easy,nonn %O A043553 1,2 %A A043553 _Wolfdieter Lang_