A123444 Number of partner-graph triangle-free perfect graphs on n nodes.

1, 2, 4, 11, 33, 132, 494, 1603, 5038, 16334

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: A188478 A373922 A302547 * A123473 A123462 A123463

Adjacent sequences: A123441 A123442 A123443 * A123445 A123446 A123447

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 18 2006

Status

approved