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%I #4 Aug 16 2012 17:34:26
%S 1,1,-5,-44,1485,-3464,-1481105,69684616,402426825,-343535701904,
%T 29507320454875,-318475281287624,-302493631536925155,
%U 52203775001430816856,-3573196771617434494265,-521806977065494496500064,224830933830289537282793745,-38789418534845196786696365984
%N 2n-th derivative of cosh(x)^cos(x) at x=0.
%C The sequence gives only 2n-th derivatives because (2n+1)-th derivatives are 0.
%t f[x_] := Cosh[x]^Cos[x]; Table[Derivative[2*n] [f][0],{n,0,17}]
%Y Cf. A215517.
%K sign
%O 0,3
%A _Michel Lagneau_, Aug 16 2012
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