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A123430
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Number of (K_5,P_5)-free Berge perfect graphs on n nodes.
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0
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1, 2, 4, 11, 31, 124, 565, 3162, 19531, 132566, 961115, 7402630, 60209764
(list;
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refs;
listen;
history;
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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..13.
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.
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CROSSREFS
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Sequence in context: A123443 A123427 A123421 * A086690 A059305 A191586
Adjacent sequences: A123427 A123428 A123429 * A123431 A123432 A123433
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, Oct 18 2006
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EXTENSIONS
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a(11)-a(13) added using tinygraph by Falk Hüffner, Jun 30 2018
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STATUS
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approved
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