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

Terms

a(0) =0a(1) =1a(2) =-1a(3) =1a(4) =2a(5) =-29a(6) =194a(7) =-1049a(8) =4472a(9) =-6299a(10) =-171736a(11) =2993101a(12) =-34111408a(13) =302131831a(14) =-1763868016a(15) =-4643279549a(16) =370023946112