G.f. A(x) satisfies: A( A(x)^2 - x*A(x) ) = x^3.

Terms

a(0) =1a(1) =1a(2) =-1a(3) =2a(4) =-6a(5) =16a(6) =-48a(7) =155a(8) =-506a(9) =1706a(10) =-5888a(11) =20608a(12) =-73152a(13) =262672a(14) =-951929a(15) =3478158a(16) =-12798568a(17) =47384216a(18) =-176387016a(19) =659776638a(20) =-2478574412a(21) =9347514586a(22) =-35376839998a(23) =134317287748a(24) =-511463365764