Expansion of e.g.f. Product_{k>=1} exp(1 - exp(x^k/k!)).

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =3a(4) =4a(5) =2a(6) =-69a(7) =-185a(8) =596a(9) =1482a(10) =22051a(11) =-8341a(12) =-450570a(13) =-1503596a(14) =-23829233a(15) =144974757a(16) =150086353a(17) =4859956733a(18) =51013196234a(19) =-504522222442