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%I #10 May 10 2024 16:51:45
%S 1,2,0,-8,-16,-64,-192,-384,-1024,-2560,-5120,-12288,-28672,-57344,
%T -131072,-294912,-589824,-1310720,-2883584,-5767168,-12582912,
%U -27262976,-54525952,-117440512,-251658240,-503316480,-1073741824,-2281701376
%N a(n) = 2^n*floor((5-2n)/3).
%C Hankel transform of A131428.
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (2,0,8,-16).
%F G.f.: (1-4x^2-16x^3)/((1-2x)(1-8x^3)).
%Y Cf. A131428.
%K easy,sign,changed
%O 0,2
%A _Paul Barry_, Dec 11 2009
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