E.g.f. A(x) satisfies A(x) = exp(x(A(x)-2)).

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =2a(4) =21a(5) =54a(6) =-605a(7) =-8422a(8) =-17815a(9) =915470a(10) =13791711a(11) =-14182158a(12) =-3814159811a(13) =-55759417546a(14) =472583147387