G.f. satisfies: A(x) = x + 2*x^2 + x*A(A(A(x))).
A215114
G.f. satisfies: A(x) = x + 2*x^2 + x*A(A(A(x))).
Terms
- a(0) =1a(1) =3a(2) =9a(3) =81a(4) =891a(5) =11907a(6) =184437a(7) =3199581a(8) =60932007a(9) =1257133527a(10) =27836230041a(11) =656867748537
External references
- oeis: A215114