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%I #7 Oct 24 2019 16:04:09
%S 1,1,4,6,12,20,80,152,304,528,2176,4416,8832,15488,64768,135552,
%T 271104,477440,2013184,4289536,8579072,15144960,64200704,138407936,
%U 276815872,489431040,2082406400,4526702592,9053405184,16024403968
%N a(n) = A027144(n, floor(n/2)).
%K nonn
%O 0,3
%A _Clark Kimberling_
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