Expansion of exp(tan(x))*x.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =12a(5) =45a(6) =222a(7) =1239a(8) =7672a(9) =54873a(10) =416410a(11) =3577739a(12) =32324292a(13) =322495173a(14) =3382216502a(15) =38370542175a(16) =457713511280