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A022562 Number of connected claw-free unlabeled graphs on n nodes. 3
1, 1, 2, 5, 14, 50, 191, 881, 4494, 26389, 184749, 1728404, 23805256, 491544474 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

R. Faudree, E. Flandrin and Z. Ryjacek, Claw-free graphs - a survey, Discr. Math., 164 (1997), 87-147.

LINKS

Table of n, a(n) for n=1..14.

Gordon Royle, 1728404 distinct 12-vertex connected clawfree graphs

Gordon Royle, g6 format

Eric Weisstein's World of Mathematics, Claw-Free Graph

CROSSREFS

Cf. A022563, A022564, A058929.

Sequence in context: A224978 A006390 A100597 * A115340 A000109 A049338

Adjacent sequences:  A022559 A022560 A022561 * A022563 A022564 A022565

KEYWORD

nonn,nice

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Corrected and extended by Gordon Royle, May 16 2003

Term a(14) added by Gordon F. Royle, Aug 06 2008

STATUS

approved

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Last modified April 23 17:46 EDT 2014. Contains 240946 sequences.