%I A121942
%S A121942 1,5,22,161,1406,14241,164461
%N A121942 Number of digraphs of hydrogen bonded water clusters.
%D A121942 T. Miyake and M. Aida, "Enumeration of topology-distinct structures of 
               hydrogen bonded water clusters", Chem. Phys. Lett., vol. 363 (2002) 
               pp. 106-110. See Table 1 column 3 on page 109.
%e A121942 If n=5 then the number of digraphs of hydrogen bonded water clusters 
               is 161.
%Y A121942 Sequence in context: A111154 A028561 A009638 this_sequence A006294 A129437 
               A048252
%Y A121942 Adjacent sequences: A121939 A121940 A121941 this_sequence A121943 A121944 
               A121945
%K A121942 nonn
%O A121942 2,2
%A A121942 Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 03 2006