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A123453
Number of skeletal perfect graphs on n nodes.
0
1, 2, 4, 11, 33, 145, 826, 6266, 54401, 504200
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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:
A123471
A123416
A123406
*
A351157
A123459
A123426
Adjacent sequences:
A123450
A123451
A123452
*
A123454
A123455
A123456
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Oct 18 2006
STATUS
approved
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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)