G.f. satisfies: 2*A(x) = 1 + x + A(x*A(x)^4).

A242006

G.f. satisfies: 2*A(x) = 1 + x + A(x*A(x)^4).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =54a(4) =1156a(5) =32917a(6) =1149264a(7) =47083228a(8) =2203193792a(9) =115647869941

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