Expansion of e.g.f. exp(cos(x)/exp(x) - 1).

Terms

a(0) =1a(1) =-1a(2) =1a(3) =1a(4) =-11a(5) =43a(6) =-83a(7) =-275a(8) =3833a(9) =-21561a(10) =51369a(11) =375593a(12) =-5860147a(13) =40452371a(14) =-101676235a(15) =-1409619211a(16) =23912208945a(17) =-189650997937a(18) =454996127889