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%I
%S 0,1,8,196,10688,937936,113552768,17875345216,3555171842048,
%T 875294104443136,261970132442851328,93711886717539460096,
%U 39452759032211774455808,19284289193322067327799296
%N Expansion of sinh(tan(x)^2)/2.
%t Sinh[ Tan[ x ]^2 ]/2 (* Even Part *)
%Y A009613.
%K nonn
%O 0,3
%A _R. H. Hardin_
%E Extended and signs tested 03/97.
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