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A123452 Number of Raspail perfect graphs on n nodes. 0
1, 2, 4, 11, 33, 148, 901, 8690, 127853, 2803340 (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: A123460 A123454 A123433 * A123436 A123417 A123419

Adjacent sequences: A123449 A123450 A123451 * A123453 A123454 A123455

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 18 2006

STATUS

approved

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Last modified January 28 01:36 EST 2023. Contains 359849 sequences. (Running on oeis4.)