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%I #4 Mar 30 2012 18:56:53
%S 1,1,6,22,86,335,1307,5071,19664,76299,296396,1152682,4487818,
%T 17492162,68252789,266589233,1042279572,4078677195,15974343417,
%U 62614027433,245608306154,964087953123,3786809126547,14883181075527
%N T(n,n-2), array T as in A047120.
%K nonn
%O 2,3
%A _Clark Kimberling_