A123409 Number of brittle perfect graphs on n nodes.

1, 2, 4, 11, 33, 146, 886, 8472, 125262, 2799594

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: A277204 A123437 A123435 * A123472 A277203 A123905

Adjacent sequences: A123406 A123407 A123408 * A123410 A123411 A123412

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 18 2006

Status

approved