A123453 - OEIS

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A123453

Number of skeletal perfect graphs on n nodes.

0

1, 2, 4, 11, 33, 145, 826, 6266, 54401, 504200

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

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

S. Hougardy, Home Page

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

CROSSREFS

Sequence in context: A123471 A123416 A123406 * A351157 A123459 A123426

Adjacent sequences: A123450 A123451 A123452 * A123454 A123455 A123456

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 18 2006

STATUS

approved