A123468 Number of 2-overlap bipartite perfect graphs on n nodes.

1, 2, 4, 11, 33, 138, 582, 2367, 9421, 37916

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: A123473 A123462 A123463 * A123415 A123469 A123448

Adjacent sequences: A123465 A123466 A123467 * A123469 A123470 A123471

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 18 2006

Status

approved