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T(2n,n), array T as in A047060.
0

%I #7 May 11 2021 21:32:32

%S 1,2,9,50,292,1757,10809,67473,425711,2707757,17332058,111508304,

%T 720429774,4670990039,30375989547,198050065342,1294186149138,

%U 8473767434587,55579644024480,365116858320540,2401901294047629,15820713708790749,104326220133691996

%N T(2n,n), array T as in A047060.

%K nonn

%O 0,2

%A _Clark Kimberling_

%E Data corrected by _Sean A. Irvine_, May 11 2021