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%I #7 Nov 29 2023 16:37:00
%S 0,2,3,1,0,-8,-12,-4,0,32,48,16,0,-128,-192,-64,0,512,768,256,0,-2048,
%T -3072,-1024,0,8192,12288,4096,0,-32768,-49152,-16384,0,131072,196608,
%U 65536,0,-524288,-786432,-262144,0,2097152,3145728,1048576,0,-8388608,-12582912,-4194304,0,33554432,50331648
%N a(n)=-4a(n-4).
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, -4).
%F O.g.f.: x(x+2)(1+x)/((1-2x+2x^2)(1+2x+2x^2)) - _R. J. Mathar_, May 23 2008
%t LinearRecurrence[{0,0,0,-4},{0,2,3,1},60] (* _Harvey P. Dale_, Nov 29 2023 *)
%K sign
%O 0,2
%A _Paul Curtz_, Apr 20 2008
%E More terms from _R. J. Mathar_, May 23 2008
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