%I #2 Mar 30 2012 17:25:50
%S 4,14,45,128,368,979,2601,6776,17641,45690,118956,309482,808323,
%T 2119187
%N Number of degeneracies on the sets of n ordinary trees with n vertices. These are the values of the Randic index, 'chi', in Table 15 of the paper by Elena V. Konstantinova and Maxim V. Vidyuk.
%C See Equation 6 on page 1862.
%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 11 on page 1868.
%e If n=8 then the value of the Randic index, 'chi', is 4.
%e If n=9 then the value of the Randic index, 'chi', is 14.
%e If n=10 then the value of the Randic index, 'chi', is 45.
%e If n=11 then the value of the Randic index, 'chi', is 128.
%Y Cf. A121223.
%K nonn
%O 8,1
%A _Parthasarathy Nambi_, Jan 09 2007