Expansion of e.g.f. exp(tanh(x)*exp(x)).

Terms

a(0) =1a(1) =1a(2) =3a(3) =8a(4) =25a(5) =92a(6) =369a(7) =1626a(8) =8033a(9) =42312a(10) =230081a(11) =1354190a(12) =8806769a(13) =59072860a(14) =398252833a(15) =2892141666a(16) =22862362049a(17) =182200364944