Expansion of e.g.f. cosh(sin(log(1+x))).

Terms

a(0) =1a(1) =0a(2) =1a(3) =-3a(4) =8a(5) =-20a(6) =16a(7) =504a(8) =-7988a(9) =98064a(10) =-1148444a(11) =13529780a(12) =-163362904a(13) =2034844032a(14) =-26171589352a(15) =346739305080