G.f. A(x) satisfies: A(x) = -x + x^2 + A(A(x)) + Series_Reversion(A(A(x))).
A228867
G.f. A(x) satisfies: A(x) = -x + x^2 + A(A(x)) + Series_Reversion(A(A(x))).
Terms
- a(0) =1a(1) =1a(2) =8a(3) =140a(4) =3536a(5) =111118a(6) =4067460a(7) =167387778a(8) =7579673514a(9) =372383647086
External references
- oeis: A228867