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

Terms

a(0) =0a(1) =1a(2) =-1a(3) =3a(4) =-4a(5) =5a(6) =-1a(7) =7a(8) =-64a(9) =9a(10) =1319a(11) =11a(12) =-49204a(13) =13a(14) =2653559a(15) =15a(16) =-196707424a(17) =17a(18) =19194804719a(19) =19a(21) =21a(23) =23a(25) =25a(27) =27a(29) =29