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%I
%S 1,1,3,12,63,403,2919,22833,187799,1599718,13984383,124717327,
%T 1130144932,10375309228,96290993853,901915801437,8514822062757,
%U 80939662475426
%N Expansion of 1/(1-x/(1-x)*A(x/(1-x))) where A(x) is the g.f. of A002293.
%H Vladimir Kruchinin, <a href="http://arxiv.org/abs/1103.2582"> Compositae and their properties </a>, arXiv:1103.2582
%F a(n)=sum(m=1..n, sum(k=m..n, binomial(n-1,k-1)*m/(3*k-2*m)*binomial(4*k-3*m-1,k-m))), n>0, a(0)=1.
%K nonn
%O 0,3
%A _Vladimir Kruchinin_, Feb 14 2011
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