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A003427 Number of trees by stability index.
(Formerly M1134)
+0
1
0, 0, 0, 0, 1, 1, 1, 2, 4, 8, 16, 34, 72, 158, 348, 784, 1777, 4080, 9425, 21965, 51456, 121300, 287215, 683268, 1631532, 3910235, 9401000, 22670058, 54813780, 132867903 (list; graph; listen)
OFFSET

1,8

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

D. D. Grant, The stability index of graphs, pp. 29-52 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974.

LINKS

Index entries for sequences related to trees

CROSSREFS

Sequence in context: A006210 A096812 A006981 this_sequence A045648 A166354 A013025

Adjacent sequences: A003424 A003425 A003426 this_sequence A003428 A003429 A003430

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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