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%I #7 May 11 2021 21:31:36
%S 1,1,2,7,23,76,278,1014,3792,14239,53516,203219,774991,2970994,
%T 11427400,44044577,170220249,659281162,2558782202,9948657480,
%U 38736609234,151032841208,589597013958,2304279342902,9015037085068,35302506743196,138362112861968
%N T(n,n), array T as in A047060.
%K nonn
%O 0,3
%A _Clark Kimberling_
%E Data corrected by _Sean A. Irvine_, May 11 2021