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

Terms

a(0) =1a(1) =0a(2) =-1a(3) =3a(4) =-14a(5) =80a(6) =-526a(7) =3906a(8) =-32192a(9) =290016a(10) =-2816056a(11) =29050120a(12) =-313052024a(13) =3442154352a(14) =-37060529416a(15) =353733158520