Expansion of cosh(log(1+x)*cosh(x)).

Terms

a(0) =1a(1) =0a(2) =1a(3) =-3a(4) =24a(5) =-120a(6) =870a(7) =-6300a(8) =55048a(9) =-527688a(10) =5684640a(11) =-66667920a(12) =850501608a(13) =-11675938560a(14) =171892670040