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%I #3 Mar 30 2012 18:37:07
%S 1,2,8,84,2676,275700,94775156,111378681460,457034829332596,
%T 6660551038769802356,349287637698829559108724,
%U 66597190541338218944629998708,46556095585511177615107782087451764
%N a(n) = [x^n] G(x)^(2^(n+1))/2^n where G(x) satisfies: [x^(n+1)] G(x)^(2^n) = [x^n] G(x)^(2^n) for n>=0 and G(2x) is the g.f. of A134084.
%F a(n) = A134087(n)/2^n.
%o (PARI) {a(n)=local(A=[1],B);for(i=1,n,A=concat(A,0); B=Vec(Ser(A)^(2^(#A-2)));A[ #A]=(B[ #B-1]-B[ #B])/2^(#A-2));Vec(Ser(A)^(2^(n+1)))[n+1]/2^n}
%Y Cf. A134084, A134085, A134086, A134087, A134088.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Oct 26 2007
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