%I #9 Dec 21 2012 18:40:06
%S 1,3,6,13,21,36,58,93,141,203,306,420,616,828,1188,1569,2181,2877,
%T 3878,5085,6651,8844,11148,14928,18196,24864,29118,40540,45858,65280,
%U 70884,103425,108357,161853,162852,250395,242963,382644,356970,579637
%N Self-convolution cube of A073711.
%C The g.f. G(x) of A073711 satisfies: G(x) = G(x^2) + x*G(x^2)^2.
%H Paul D. Hanna, <a href="/A194279/b194279.txt">Table of n, a(n) for n = 0..10000</a>
%F a(n) = A073711(4*n+3)/2.
%F a(n) = A073712(2*n+1)/2, where A073712 equals the self-convolution of A073711.
%o (PARI) {a(n)=local(A=1); for(i=0, #binary(n), A=subst(A, x, x^2+x*O(x^n))+x*subst(A, x, x^2+x*O(x^n))^2); polcoeff(A^3, n)}
%o for(n=0, 65, print1(a(n), ", "))
%Y Cf. A073711, A073712.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Dec 21 2012