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%I #4 Mar 30 2012 18:56:09
%S 1,5,20,74,278,1049,3980,15170,58052,222914,858512,3314960,12829070,
%T 49748705,193259660,751954250,2929965020,11431262390,44651369720,
%U 174597927740,683388447260,2677230376490,10496941482680,41188078562324
%N T(2n,n-1), T given by A026637.
%K nonn
%O 1,2
%A _Clark Kimberling_
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