%I #14 Dec 14 2023 05:32:57
%S 1,-1,0,0,1,-2,1,0,0,-1,1,-1,1,-1,0,0,1,-2,1,0,0,-1,1,-1,1,-1,0,0,1,
%T -2,1,0,0,-1,1,-1,1,-1,0,0,1,-2,1,0,0,-1,1,-1,1,-1,0,0,1,-2,1,0,0,-1,
%U 1,-1,1,-1,0,0,1,-2,1,0,0,-1,1,-1
%N Periodic {1,-1,0,0,1,-2,1,0,0,-1,1,-1}.
%C Diagonal sums of number triangle A115952.
%H <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (-1,-1,0,1,1,1)
%F G.f.: (1-x^3-x^5)/((1-x^3)(1+x+x^2+x^3))
%t LinearRecurrence[{-1,-1,0,1,1,1},{1,-1,0,0,1,-2},80] (* or *) PadRight[{},80,{1,-1,0,0,1,-2,1,0,0,-1,1,-1}] (* _Harvey P. Dale_, Jan 28 2023 *)
%K easy,sign
%O 0,6
%A _Paul Barry_, Feb 02 2006
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