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A123418 Number of dart-free Berge perfect graphs on n nodes. 0
1, 2, 4, 11, 32, 124, 512, 2495, 13245, 79734 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

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

LINKS

Table of n, a(n) for n=1..10.

S. Hougardy, Home Page

CROSSREFS

Sequence in context: A056324 A056325 A103293 * A123412 A074408 A123425

Adjacent sequences:  A123415 A123416 A123417 * A123419 A123420 A123421

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 18 2006

STATUS

approved

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Last modified May 25 05:52 EDT 2013. Contains 225644 sequences.