

A121221


Number of degeneracies on the sets of N ordinary trees with p vertices.


0



2, 2, 4, 15, 35, 137, 306, 1056, 2510, 8094, 21568, 66310, 183338, 545993, 1538831
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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, 18601871. See Table 15, column 5 on page 1868.


LINKS



EXAMPLE

If p=16 then the parameter H_lambda is 8094 which is the tenth term in the sequence. See the paper by Elena V. Konstantinova and Maxim V. Vidyuk for the definition of H_lambda.


CROSSREFS



KEYWORD

nonn,uned


AUTHOR



STATUS

approved



