Expansion of e.g.f.: sinh(log(1 + sin(x))).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =2a(4) =-8a(5) =31a(6) =-136a(7) =692a(8) =-3968a(9) =25261a(10) =-176896a(11) =1351382a(12) =-11184128a(13) =99680491a(14) =-951878656a(15) =9695756072a(16) =-104932671488