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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
OFFSET
1,2
LINKS
S. Hougardy, Home Page
S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.
CROSSREFS
Sequence in context: A298445 A294224 A296270 * A026164 A192405 A035354
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Oct 18 2006
STATUS
approved