G.f. A(x) satisfies: A(x) = 1 / ((1 - x) * (1 - x * A(4*x))).

A348859

G.f. A(x) satisfies: A(x) = 1 / ((1 - x) * (1 - x * A(4*x))).

Terms

    a(0) =1a(1) =2a(2) =11a(3) =204a(4) =13701a(5) =3550838a(6) =3646912991

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