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%I #3 Aug 02 2014 06:11:56
%S 0,0,0,3,0,6,40,150,100,525,1960,5880,7056,26460,83160,228690,365904,
%T 1189188,3435432,9018009,17177160,51531480,141581440,361032672,
%U 773641440,2204878104,5859116640,14647791600,34178180400,93989996100,243891989880,601019546490
%N Binomial(n-k,k) * binomial(n-k-1,k+1) where k = ceiling(n/4).
%Y Cf. A171001, A171003, A171006.
%K nonn
%O 1,4
%A _John P. Linderman_, Sep 01 2010