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%I #9 Apr 02 2017 15:33:21
%S 0,1,6,59,268,-58123,-8182126,-1063116241,-153085326824,
%T -25192786614807,-4733251241428194,-1002760023439122397,
%U -234743067240981946588,-58793979433427774979363,-14793571004015066901139030
%N Expansion of tan(x)*sin(tan(x))/2.
%t Tan[ x ]*Sin[ Tan[ x ]]/2 (* Even Part *)
%Y Cf. A009742.
%K sign
%O 0,3
%A _R. H. Hardin_
%E Extended with signs Mar 1997