E.g.f: log(1+sinh(x))*cosh(x).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =6a(4) =-16a(5) =80a(6) =-421a(7) =2800a(8) =-21736a(9) =194304a(10) =-1961521a(11) =22060544a(12) =-273408136a(13) =3701321728a(14) =-54335326501a(15) =859630860288