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A123459
Number of strict opposition perfect graphs on n nodes.
0
1, 2, 4, 11, 33, 145, 840, 6757, 66677, 742244
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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:
A123406
A123453
A351157
*
A123426
A277204
A123437
Adjacent sequences:
A123456
A123457
A123458
*
A123460
A123461
A123462
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Oct 18 2006
STATUS
approved
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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)