G.f. A(x) satisfies x / Series_Reversion(x*A(x)) = (2*A(x) + 1+x)/3.
A326604
G.f. A(x) satisfies x / Series_Reversion(x*A(x)) = (2*A(x) + 1+x)/3.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =21a(4) =231a(5) =3333a(6) =58167a(7) =1175877a(8) =26827623a(9) =679078677a(10) =18844334727a(11) =568229240901
External references
- oeis: A326604