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A003427 Number of trees by stability index.
(Formerly M1134)
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; refs; listen; history; text; internal format)
OFFSET

1,8

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

Table of n, a(n) for n=1..30.

D. D. Grant, The stability index of graphs, pp. 29-52 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974. Gives first 45 terms.

Index entries for sequences related to trees

CROSSREFS

Sequence in context: A288176 A096812 A006981 * A045648 A248890 A308245

Adjacent sequences:  A003424 A003425 A003426 * A003428 A003429 A003430

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 11 18:50 EST 2019. Contains 329031 sequences. (Running on oeis4.)