%I #14 Jun 21 2015 21:51:39
%S 1,0,0,3,-11,30,-14,-525,4593,-22428,17596,1039995,-13641275,96216978,
%T -105681666,-8517557685,148962722881,-1373978443800,1940315387608,
%U 198084321525267,-4330346354150859,49339565916861990,-85160442362115350
%N Expansion of e.g.f.: cosh(x)/cosh(log(1+x)).
%t With[{nn=30},CoefficientList[Series[Cosh[x]/Cosh[Log[1+x]],{x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, Aug 13 2012 *)
%K sign,easy
%O 0,4
%A _R. H. Hardin_
%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997
%E Definition clarified by _Harvey P. Dale_, Aug 13 2012