%I A130190
%S A130190 1,2,6,4,15,12,42,24,90,10,33,8,910,105,90,48,255,180,3990,420,6930,330,
%T A130190 345,720,13650,273,378,28,145,20,14322,2464,117810,3570,7,24,1919190,
%U A130190 1729,2730,840,9471,13860,99330,1540,217350,4830,4935,10080,324870
%N A130190 Denominators of z-sequence for the Sheffer matrix (triangle) A094816 
               (coefficients of Poisson-Charlier polynomials).
%C A130190 The numerators are given in A130189.
%C A130190 See A130189 for the W. Lang link on z-sequences for Sheffer matrices.
%F A130190 a(n)=denominator(z(n)),n>=0, with the e.g.f. for z(n) given in A130189.
%F A130190 Denominator of Sum_{k=0..n} A048993(n,k)/(k+1). [From Peter Luschny (peter(AT)luschny.de), 
               Apr 28 2009]
%p A130190 seq(denom(add(stirling2(n,k)/(k+1),k=0..n)),n=0..20); [From Peter Luschny 
               (peter(AT)luschny.de), Apr 28 2009]
%Y A130190 Sequence in context: A064462 A111807 A069914 this_sequence A110346 A095754 
               A127320
%Y A130190 Adjacent sequences: A130187 A130188 A130189 this_sequence A130191 A130192 
               A130193
%K A130190 nonn,easy
%O A130190 0,2
%A A130190 Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de) Jun 01 2007