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A123439
Number of P_4-lite perfect graphs on n nodes.
0
1, 2, 4, 11, 33, 94, 278, 841, 2613, 8314
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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:
A298445
A294224
A296270
*
A026164
A025191
A192405
Adjacent sequences:
A123436
A123437
A123438
*
A123440
A123441
A123442
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Oct 18 2006
STATUS
approved
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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)