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%I
%S 1,2,20,448,17296,1013600,83547584,9196867072,1301697829120,
%T 230093807905280,49636887216382976,12825384465418534912,
%U 3908078275606800338944,1386160615200497825275904
%N Expansion of cosh(tan(x))/cos(x).
%t Cosh[ Tan[ x ] ]/Cos[ x ] (* Even Part *)
%K nonn
%O 0,2
%A _R. H. Hardin_
%E Extended and signs tested Mar 15 1997 by Olivier Gerard.
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