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 A049348 #8 Mar 31 2012 13:19:59
%S A049348 1,4,10,25,67,172,448,1165,3025,7864,20434,53101,137995,358600,931888,
%T A049348 2421673,6293137,16353820,42498250,110439121,286995331,745807444,
%U A049348 1938110800,5036519125,13088273857,34012163632,88386542578
%N A049348 Row sums of triangle A049324.
%C A049348 p(2,x) is row polynomial corresponding to triangle row A033842(2,m).
%H A049348 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 A049348 G.f.: x*(1+3*x+3*x^2)/(1-x-3*x^2-3*x^3)= x*p(2, x)/(1-x*p(2, x)) with x*p(2, x) G.f. for first column of A049324.
%F A049348 Limit_{n-->oo} a(n+1)/a(n) = 3/(10^(1/3)-1) = 2.5986745... - _Paul D. Hanna_, Oct 13 2004
%K A049348 easy,nonn
%O A049348 1,2
%A A049348 _Wolfdieter Lang_