Expansion of tan(log(1+x)*cos(x)).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =1a(4) =-12a(5) =35a(6) =-195a(7) =1979a(8) =-13552a(9) =131333a(10) =-1540845a(11) =16920341a(12) =-219934044a(13) =3138657015a(14) =-46097651327a(15) =745768998623