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%I #13 Oct 25 2019 16:51:16
%S 1,9,57,298,1545,7126,34603,151633,714481,3049328,14131926,59385159,
%T 272409611,1133433579,5163641033,21341122875,96751092786,397978832144,
%U 1797722306693,7369285976135,33195299823112,135723491400062,610027809595308,2489247495517382,11168400384253936
%N a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026725.
%p A027210 := proc(n)
%p add( A026725(n,k)*A026725(n,k+3),k=0..n-3) ;
%p end proc: # _R. J. Mathar_, Oct 21 2019
%K nonn
%O 3,2
%A _Clark Kimberling_
%E Name corrected by _R. J. Mathar_, Oct 21 2019
%E More terms from _Sean A. Irvine_, Oct 24 2019
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