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A123410
Number of bull-free Berge perfect graphs on n nodes.
0
1, 2, 4, 11, 32, 130, 592, 3275, 19546, 126842, 865872, 6301047, 49781998, 450653524
OFFSET
1,2
LINKS
S. Hougardy, Home Page
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 3e9b2ba.
CROSSREFS
Sequence in context: A074408 A123425 A123414 * A123434 A123424 A123449
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Oct 18 2006
EXTENSIONS
a(11)-a(14) added using tinygraph by Falk Hüffner, Jun 30 2018
STATUS
approved