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a(n) = Sum_{k=1..n} T(n,k), array T as in A049816.
3

%I #14 Nov 29 2023 16:16:26

%S 0,0,1,1,4,2,7,7,8,8,17,9,20,18,17,19,30,24,37,25,30,34,51,31,44,48,

%T 49,45,68,42,71,59,64,72,67,57,88,82,85,71,106,72,113,89,88,106,131,

%U 91,116,112,119,113,152,114,129,111,136,144,173

%N a(n) = Sum_{k=1..n} T(n,k), array T as in A049816.

%H Alois P. Heinz, <a href="/A049817/b049817.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A049816.

%K nonn

%O 1,5

%A _Clark Kimberling_