Expansion of log(1+log(1+sinh(x))).

Terms

a(0) =0a(1) =1a(2) =-2a(3) =8a(4) =-43a(5) =299a(6) =-2566a(7) =26200a(8) =-310458a(9) =4190709a(10) =-63507976a(11) =1067945504a(12) =-19737313696a(13) =397714143007