Expansion of e.g.f. exp(cosh(exp(x) - 1) - 1).

Terms

a(0) =1a(1) =0a(2) =1a(3) =3a(4) =11a(5) =55a(6) =322a(7) =2114a(8) =15556a(9) =127005a(10) =1135374a(11) =11011220a(12) =115080825a(13) =1288589757a(14) =15379512670a(15) =194796087841