A123453 Number of skeletal perfect graphs on n nodes.

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

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