Expansion of e.g.f. exp(sin(x)-sinh(x)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =-2a(4) =0a(5) =0a(6) =40a(7) =-2a(8) =0a(9) =-2240a(10) =480a(11) =-2a(12) =246400a(13) =-137280a(14) =8320a(15) =-44844802a(16) =51251200a(17) =-10325120a(18) =12197916160a(19) =-24831206402a(20) =11394406400