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A003428 Number of trees by stability index.
(Formerly M0738)
+0
1
0, 0, 0, 0, 0, 0, 2, 3, 5, 12, 22, 47, 94, 201, 417, 907, 1948, 4289, 9440, 21063, 47124, 106377, 240980, 549272, 1256609, 2888057, 6660347, 15416623, 35794121, 83362301 (list; graph; listen)
OFFSET

1,7

REFERENCES

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

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

LINKS

Index entries for sequences related to trees

CROSSREFS

Sequence in context: A089891 A004689 A124370 this_sequence A030041 A153987 A008323

Adjacent sequences: A003425 A003426 A003427 this_sequence A003429 A003430 A003431

KEYWORD

nonn

AUTHOR

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

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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