Expansion of e.g.f. exp(exp(x) + cosh(x) - 2).

Terms

a(0) =1a(1) =1a(2) =3a(3) =8a(4) =31a(5) =122a(6) =579a(7) =2886a(8) =16139a(9) =95358a(10) =611111a(11) =4128830a(12) =29709695a(13) =224400022a(14) =1785322699a(15) =14841968646a(16) =129015458195