%I #7 Jan 20 2020 07:57:33
%S 1,2,5,14,28,84,272,1679,5564,19613,70504,311534,1172750,4405073,
%T 16581264,67108040,260573610,1004778126,3867996120,15289911196,
%U 59854486782,233437968413,909025875014,3575067252387,14038457059264
%N T(n,n-1), array T as in A047130.
%K nonn
%O 1,2
%A _Clark Kimberling_
%E Definition corrected by _Georg Fischer_, Jan 20 2020