O.g.f. satisfies: A(x) = Sum_{n>=0} n^n*(n+1)^(n-1) * exp(-n*(n+1)*x/A(x)) * (x/A(x))^n / n!.

A219532

O.g.f. satisfies: A(x) = Sum_{n>=0} n^n*(n+1)^(n-1) * exp(-n*(n+1)*x/A(x)) * (x/A(x))^n / n!.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =28a(4) =427a(5) =9096a(6) =248298a(7) =8258552a(8) =323891811a(9) =14636853712a(10) =749171687006

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