%I #11 Apr 01 2017 13:57:26
%S 1,1,1,-4,-19,12,517,1472,-18023,-159792,587529,16362304,19183749,
%T -1834702400,-12219870323,218477736448,3379214470193,-23399883425536,
%U -883981857320943,225490426670080,238930492488456221
%N Expansion of exp(tanh(x)/cosh(x)).
%t Exp[ Tanh[ x ]/Cosh[ x ] ]
%K sign,easy
%O 0,4
%A _R. H. Hardin_
%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997