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%I #4 Mar 30 2012 18:56:10
%S 1,5,17,87,324,1707,6595,35300,139114,751901,3000177,16322561,
%T 65684626,359049028,1453825024,7975236698,32444454286,178473218093,
%U 728737293093,4017589328269,16453338330248,90873261482607,373067000217563
%N T(2n-1,n-1), T given by A026681.
%K nonn
%O 1,2
%A _Clark Kimberling_