%I #2 Mar 30 2012 18:59:45
%S 18,2700,992250,250047000,68075295750,253103949598500,
%T 24677635085853750,40753351656067050000,1969563638017107451068750,
%U 2619519638562752909921437500,2910024366479362207631724918750
%N Denominators of the column sums of the LG1 matrix
%C For the definition of the LG1 matrix coefficients see A162448.
%C We define the columns sums by cs(n) = sum(LG1[2*m,n], m = 0.. infinity) for n => 2.
%F a(n) = denom(cs(n)) and numer(cs(n)) = A162448(n).
%Y See A162448 for the numerators of the column sums.
%K easy,frac,nonn
%O 2,1
%A _Johannes W. Meijer_, Jul 06 2009