A123463 Number of 3-overlap triangle-free perfect graphs on n nodes.

1, 2, 4, 11, 33, 136, 532, 1783, 5549, 17906

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: A123444 A123473 A123462 * A123468 A123415 A123469

Adjacent sequences: A123460 A123461 A123462 * A123464 A123465 A123466

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 18 2006

Status

approved