G.f. A(x) satisfies A(x) = ( (1 + x*A(x)^2) * (1 + x*A(x)) )^2.
A379279
G.f. A(x) satisfies A(x) = ( (1 + x*A(x)^2) * (1 + x*A(x)) )^2.
Terms
- a(0) =1a(1) =4a(2) =30a(3) =288a(4) =3125a(5) =36490a(6) =447478a(7) =5683186a(8) =74105002a(9) =986302778a(10) =13344661479a(11) =182998935930
External references
- oeis: A379279