%I #2 Mar 30 2012 17:25:50
%S 2,2,28,22,265,258,2217,2192,17453,18378,134508,149854
%N Number of degeneracies on the sets of n ordinary trees with n vertices. These are the values of the average distance sum connectivity index, J, in Table 15 of the paper by Elena V. Konstantinova and Maxim V. Vidyuk.
%C See Equation 5 on page 1861 of the paper by Elena V. Konstantinova and Maxim V. Vidyuk.
%D Elena V. Konstantinova and Maxim V. Vidyuk, "Discriminating tests of information and topological indices. Animals and trees", J. Chem. Inf. Comput. Sci., (2003), vol. 43, 1860-1871. See Table 15, column 10 on page 1868.
%e If n=10 then the value of the average distance sum connectivity index, J, is 2.
%e If n=11 then the value of the average distance sum connectivity index, J, is 2.
%e If n=12 then the value of the average distance sum connectivity index, J, is 28.
%e If n=13 then the value of the average distance sum connectivity index, J, is 22.
%Y Cf. A121223.
%K nonn
%O 10,1
%A _Parthasarathy Nambi_, Jan 09 2007