Expansion of exp(sinh(x))/cos(x).

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =57a(6) =248a(7) =1157a(8) =6336a(9) =36753a(10) =244480a(11) =1702725a(12) =13409408a(13) =109438409a(14) =999327488a(15) =9375819525a(16) =97590304768