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a(n) = Sum_{i=0..floor((n+1)/2)} T(2i+1,n-2i-1) where T is A049615.
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%I #8 Aug 05 2021 20:01:36

%S 0,0,0,3,4,11,14,26,30,49,56,82,92,126,138,184,200,256,276,343,366,

%T 449,478,574,608,720,758,889,934,1081,1134,1298,1352,1540,1602,1814,

%U 1888,2120,2196,2456,2544,2826,2924,3229,3330,3669,3782,4146,4268,4661,4792

%N a(n) = Sum_{i=0..floor((n+1)/2)} T(2i+1,n-2i-1) where T is A049615.

%K nonn

%O 0,4

%A _Clark Kimberling_

%E More terms from _Sean A. Irvine_, Aug 05 2021