Expansion of tan(sin(log(1+x))).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =3a(4) =-12a(5) =56a(6) =-300a(7) =1712a(8) =-9296a(9) =31580a(10) =332820a(11) =-12153628a(12) =262379568a(13) =-5078814272a(14) =95841606224