E.g.f.: exp(sin(x)/exp(x)).

Terms

a(0) =1a(1) =1a(2) =-1a(3) =-3a(4) =9a(5) =17a(6) =-145a(7) =21a(8) =2961a(9) =-9119a(10) =-58273a(11) =530541a(12) =177177a(13) =-24815503a(14) =109736783a(15) =845196933a(16) =-11562650847a(17) =9274089409a(18) =818943535295