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A123468
Number of 2-overlap bipartite perfect graphs on n nodes.
0
1, 2, 4, 11, 33, 138, 582, 2367, 9421, 37916
OFFSET
1,2
LINKS
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
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Oct 18 2006
STATUS
approved