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%I #8 Mar 31 2012 12:34:55
%S 1,116,202576,1557978176,34206677698816,1706222428480541696,
%T 167325183704890858786816,29168516299952885066683006976,
%U 8389219957754997383106354075467776
%N Expansion of tanh(tan(x))*sin(x)/2.
%t Sinh[ Tanh[ x ]*Tan[ x ] ]/2 (* [ x^(4n+2) ] *)
%Y Cf. A012671.
%K nonn
%O 0,2
%A _R. H. Hardin_
%E Extended and signs tested 03/97.
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