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

Terms

a(0) =1a(1) =0a(2) =-1a(3) =9a(4) =-58a(5) =330a(6) =-1690a(7) =6580a(8) =5924a(9) =-626856a(10) =11483620a(11) =-169739812a(12) =2336104168a(13) =-31232156280a(14) =411116838184