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A120968
Number of degeneracies on the sets of N ordinary trees with p vertices.
0
4, 2, 43, 43, 332, 284, 2766, 2494
OFFSET
1,1
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 2 on page 1868.
EXAMPLE
If p=21 then the parameter I_D is 2494 which is the eighth term in the sequence. See the paper by Elena V. Konstantinova and Maxim V. Vidyuk for the definition of I_D.
CROSSREFS
Sequence in context: A123850 A280780 A264755 * A193894 A107667 A362155
KEYWORD
nonn,uned
AUTHOR
Parthasarathy Nambi, Aug 19 2006
STATUS
approved