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A123426 Number of Hoang perfect graphs on n nodes. 0
1, 2, 4, 11, 33, 145, 848, 7111, 77067, 1007506 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.

LINKS

S. Hougardy, Home Page

CROSSREFS

Sequence in context: A123406 A123453 A123459 * A123437 A123435 A123409

Adjacent sequences:  A123423 A123424 A123425 * A123427 A123428 A123429

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 18 2006

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Last modified February 17 06:08 EST 2012. Contains 205986 sequences.