login
A123420
Number of diamond-free Berge perfect graphs on n nodes.
0
1, 2, 4, 10, 24, 75, 249, 1033, 4918, 28077, 186321, 1461912, 13705098, 159056641
OFFSET
1,2
LINKS
S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.
F. Hüffner, tinygraph, software for generating integer sequences based on graph properties, version 6c1dbe4.
CROSSREFS
Sequence in context: A060776 A148090 A148091 * A000458 A089928 A173610
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 18 2006
EXTENSIONS
a(11)-a(14) added using tinygraph by Falk Hüffner, Jun 30 2018
STATUS
approved