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A123418
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Number of dart-free Berge perfect graphs on n nodes.
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0
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1, 2, 4, 11, 32, 124, 512, 2495, 13245, 79734, 538052, 4171519, 37767142
(list;
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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, 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.
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CROSSREFS
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Sequence in context: A056325 A345207 A103293 * A123412 A074408 A123425
Adjacent sequences: A123415 A123416 A123417 * A123419 A123420 A123421
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KEYWORD
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nonn,more
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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 29 2018
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STATUS
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approved
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