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%I #5 Mar 30 2012 18:56:16
%S 16,70,292,1197,4864,19656,79124,317592,1271976,5085730,20307396,
%T 81003583,322847552,1285900570,5119076236,20370229878,81032093192,
%U 322258628220,1281334227276,5093898416278,20248096412336,80478051058480
%N Sum{T(n,k)*T(n,k+3)}, 0<=k<=2n-3, T given by A027926.
%K nonn
%O 3,1
%A _Clark Kimberling_