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

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =-12a(5) =60a(6) =-450a(7) =2940a(8) =-20720a(9) =155232a(10) =-1186920a(11) =9474960a(12) =-74648376a(13) =552593184a(14) =-3012161152a(15) =-10103577120a(16) =836086634240