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 A125067 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. 0
 2, 2, 28, 22, 265, 258, 2217, 2192, 17453, 18378, 134508, 149854 (list; graph; refs; listen; history; text; internal format)
 OFFSET 10,1 COMMENTS See Equation 5 on page 1861 of the paper by Elena V. Konstantinova and Maxim V. Vidyuk. REFERENCES 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. LINKS EXAMPLE If n=10 then the value of the average distance sum connectivity index, J, is 2. If n=11 then the value of the average distance sum connectivity index, J, is 2. If n=12 then the value of the average distance sum connectivity index, J, is 28. If n=13 then the value of the average distance sum connectivity index, J, is 22. CROSSREFS Cf. A121223. Sequence in context: A288208 A024577 A121222 * A193618 A246062 A178955 Adjacent sequences: A125064 A125065 A125066 * A125068 A125069 A125070 KEYWORD nonn AUTHOR Parthasarathy Nambi, Jan 09 2007 STATUS approved

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Last modified March 28 23:19 EDT 2023. Contains 361596 sequences. (Running on oeis4.)