G.f. A(x) satisfies: x = Sum_{n>=1} x^n * Product_{k=1..n} A(-k*x).

A266908

G.f. A(x) satisfies: x = Sum_{n>=1} x^n * Product_{k=1..n} A(-k*x).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =7a(4) =45a(5) =578a(6) =15523a(7) =872933a(8) =101606058a(9) =24244705427

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