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

Terms

a(0) =0a(1) =1a(2) =2a(3) =1a(4) =4a(5) =41a(6) =198a(7) =673a(8) =4040a(9) =41425a(10) =316874a(11) =2148961a(12) =19176268a(13) =225227705a(14) =2374489614a(15) =23880701185a(16) =282825044624