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Expansion of (1+2*x-3*x^2-4*x^3+x^4)/(1-8*x^2+11*x^4).
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%I #5 Dec 16 2022 15:41:23

%S 1,2,5,12,30,74,185,460,1150,2866,7165,17868,44670,111418,278545,

%T 694796,1736990,4332770,10831925,27019404,67548510,168494762,

%U 421236905,1050744652,2626861630,6552514834,16381287085

%N Expansion of (1+2*x-3*x^2-4*x^3+x^4)/(1-8*x^2+11*x^4).

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (0,8,0,-11).

%t CoefficientList[Series[(1+2x-3x^2-4x^3+x^4)/(1-8x^2+11x^4),{x,0,40}],x] (* or *) LinearRecurrence[{0,8,0,-11},{1,2,5,12,30},40] (* _Harvey P. Dale_, Dec 16 2022 *)

%K nonn

%O 0,2

%A _N. J. A. Sloane_.