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

A301455

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

Terms

    a(0) =1a(1) =1a(2) =4a(3) =16a(4) =74a(5) =360a(6) =1840a(7) =9698a(8) =52409a(9) =288697a(10) =1615275a(11) =9153850a(12) =52434770a(13) =303104532a(14) =1765920785a(15) =10358843904a(16) =61129390652a(17) =362650003202

External references