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%I #4 Mar 14 2015 11:50:43
%S 1,4,26,268,3851,69308,1459552,34513468,893162569,24873809192,
%T 736914860764,23034718900652,755096654861093,25838920473462512,
%U 919688365896843632,33951797935609852260,1296987353334993492885
%N G.f. A(x) satisfies A(x/A(x)) = 1/(1-x)^4.
%F Self-convolution 4th power of A145162.
%F Self-convolution square of A145163.
%o (PARI) {a(n)=local(A=1+x+x*O(x^n),B);for(n=0,n,B=serreverse(x/A);A=1/(1-B)^4);polcoeff(A,n)}
%Y Cf. A145162, A145163.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Oct 03 2008
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