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A079564 Number of unlabeled graphs on n vertices with no induced subgraphs isomorphic to a P5 or complement of a P5 (P5 = path on 5 vertices.). 0
1, 1, 2, 6, 19, 78, 345, 1780, 10030 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

J. L. Fouquet, "A Decomposition for a class of (P5,P5-bar)-free graphs," Discrete Math. 121 (1993) 75-83

V. Giakoumakis and I. Rusu, "Weighted Parameters in (P5,P5-bar)-free graphs," Discrete Appl. Math. 80 (2-3) (1997) 255-261

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A138800 A008989 A057240 * A079453 A186770 A127942

Adjacent sequences:  A079561 A079562 A079563 * A079565 A079566 A079567

KEYWORD

nonn

AUTHOR

Jim Nastos, Jan 24 2003

STATUS

approved

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Last modified April 24 15:13 EDT 2014. Contains 240985 sequences.