%I A126932
%S A126932 1,4,15,55,199,714,2547,9048,32043,113212,399265,1406079,4946137,
%T A126932 17383162,61048359,214270215,7516918811,2636004228,9240836733,
%U A126932 32386215971
%N A126932 Binomial transform of A127358.
%C A126932 Hankel transform is (-1)^n.
%C A126932 Row sums of the Riordan array ((1-2x)/(1+x+x^2),x/(1+x+x^2))^(-1). [From 
               Paul Barry (pbarry(AT)wit.ie), Nov 06 2008]
%F A126932 a(0)=1, a(n+1)=3*a(n)+A059738(n).
%F A126932 G.f: (sqrt(-3x^2-2x+1)-3(3x-1))/(2(21x^2-13x+2)). [From Paul Barry (pbarry(AT)wit.ie), 
               Nov 06 2008]
%Y A126932 Sequence in context: A001559 A002311 A102349 this_sequence A094833 A039717 
               A026013
%Y A126932 Adjacent sequences: A126929 A126930 A126931 this_sequence A126933 A126934 
               A126935
%K A126932 nonn
%O A126932 0,2
%A A126932 Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Mar 17 2007