E.g.f.: exp(9*(exp(x)-1)).

A276506

E.g.f.: exp(9*(exp(x)-1)).

Terms

    a(0) =1a(1) =9a(2) =90a(3) =981a(4) =11511a(5) =144108a(6) =1911771a(7) =26730981a(8) =392209380a(9) =6016681467a(10) =96202473183

External references