A049748 - OEIS

%I #7 Aug 06 2021 23:47:30

%S 0,4,9,20,37,66,101,148,209,294,383,512,639,814,1003,1224,1461,1750,

%T 2047,2420,2791,3206,3661,4176,4731,5354,5977,6688,7429,8250,9093,

%U 10028,10991,12066,13157

%N a(n) = Sum_{i=0..n} T(i,n-i), array T as in A049747.

%K nonn

%O 0,2

%A _Clark Kimberling_