E.g.f. satisfies A(x)^A(x) = 1/(1 - x)^(x^3).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =24a(5) =60a(6) =240a(7) =1260a(8) =-12096a(9) =-120960a(10) =-1144800a(11) =-11642400a(12) =190270080a(13) =4670265600a(14) =81378198720a(16) =-880532674560