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%I #9 Oct 18 2019 04:02:39
%S 2,17,138,1084,8527,67409,536843,4307147,34801715,283030274,
%T 2315438399,19044040677,157394654650,1306557744949,10889306772743,
%U 91085757952639,764439327119422,6435130001113495,54323350723804917,459764825016808251,3900499696992039543
%N a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A026300.
%K nonn
%O 2,1
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Oct 17 2019
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