%I A027109
%S A027109 1,2,6,29,131,619,3013,14854,73996,372023,1883369,9591012,49091034,
%T A027109 252371780,1302419484,6744389329,35031370911,182457629783,952674694705,
%U A027109 4985494458892,26143834054498,137358293523986,722938114992478
%N A027109 Sum{T(n,k)*T(n,n+k)}, 0<=k<=n, T given by A027082.
%Y A027109 Sequence in context: A002047 A126340 A136639 this_sequence A107375 A020126 
               A124529
%Y A027109 Adjacent sequences: A027106 A027107 A027108 this_sequence A027110 A027111 
               A027112
%K A027109 nonn
%O A027109 0,2
%A A027109 Clark Kimberling (ck6(AT)evansville.edu)