Expansion of e.g.f. exp(sin(x)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =0a(4) =-3a(5) =-8a(6) =-3a(7) =56a(8) =217a(9) =64a(10) =-2951a(11) =-12672a(12) =5973a(13) =309376a(14) =1237173a(15) =-2917888a(16) =-52635599a(17) =-163782656a(18) =1126610929a(19) =12716052480a(20) =20058390573a(21) =-495644917760