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A029589 Expansion of (1+sin(x)+sin(x)^2)/(1-sin(x)+sin(x)^2). 0

%I

%S 1,2,4,-2,-64,-238,1024,18478,64256,-1078558,-16672256,-22614242,

%T 2401458176,32373060722,-117093134336,-9756500186162,-106877784162304,

%U 1553450981649602,64518260702838784,465844716994278718

%N Expansion of (1+sin(x)+sin(x)^2)/(1-sin(x)+sin(x)^2).

%t With[{nn=20},CoefficientList[Series[(1+Sin[x]+Sin[x]^2)/(1-Sin[x]+ Sin[x]^2), {x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, May 24 2021 *)

%K sign

%O 0,2

%A _N. J. A. Sloane_.

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Last modified July 23 21:10 EDT 2021. Contains 346265 sequences. (Running on oeis4.)