A123431 Number of LGBIP perfect graphs on n nodes.

1, 2, 4, 9, 17, 39, 84, 200, 484, 1263

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: A362033 A059973 A030035 * A049961 A321736 A283315

Adjacent sequences: A123428 A123429 A123430 * A123432 A123433 A123434

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 18 2006

Status

approved