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A024248 Expansion of sin(tan(x)*x)/2. 0

%I

%S 0,1,4,-12,-2272,-166960,-13136448,-1177426880,-116571720704,

%T -11452654888704,-669616618900480,214088681811547136,

%U 155062926684742508544,76744341986122463531008,36379718195920790292840448

%N Expansion of sin(tan(x)*x)/2.

%t Sin[ Tan[ x ]*x ]/2 (* Even Part *)

%Y Cf. A009515.

%K sign

%O 0,3

%A _R. H. Hardin_

%E Extended with signs Mar 1997

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Last modified August 15 14:39 EDT 2022. Contains 356145 sequences. (Running on oeis4.)