G.f. satisfies A(x) = ( 1 + x*A(x)^2 / (1 - x*A(x)) )^3.
A365147
G.f. satisfies A(x) = ( 1 + x*A(x)^2 / (1 - x*A(x)) )^3.
Terms
- a(0) =1a(1) =3a(2) =24a(3) =244a(4) =2802a(5) =34629a(6) =449509a(7) =6043716a(8) =83433402a(9) =1175735326a(10) =16843576440a(11) =244578817557
External references
- oeis: A365147