%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, 18601871. 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
