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

Terms

a(0) =0a(1) =1a(2) =-3a(3) =8a(4) =-32a(5) =149a(6) =-831a(7) =5340a(8) =-38744a(9) =316161a(10) =-2846611a(11) =28263960a(12) =-305651048a(13) =3593550245a(14) =-45584631743a(15) =622159233948