%I #7 Oct 20 2019 16:27:29
%S 1,2,11,34,138,492,1830,6804,25576,96728,367932,1405884,5392590,
%T 20751504,80076872,309748096,1200669828,4662772672,18137643524,
%U 70657441212,275620281310,1076429623256,4208562777342,16470788108008,64519534566362,252948764993472,992453764928050
%N a(n) = self-convolution of array T given by A026626.
%K nonn
%O 0,2
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Oct 20 2019
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