G.f. satisfies A(x) = G(x/(1-x)^4) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.

A213336

G.f. satisfies A(x) = G(x/(1-x)^4) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.

Terms

    a(0) =1a(1) =1a(2) =8a(3) =64a(4) =568a(5) =5440a(6) =54888a(7) =574848a(8) =6190872a(9) =68132224a(10) =762874568a(11) =8663106496a(12) =99536424952

External references