1,2
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.
Sequence in context: A136326 A059973 A030035 * A049961 A321736 A283315
Adjacent sequences: A123428 A123429 A123430 * A123432 A123433 A123434
nonn,more
N. J. A. Sloane, Oct 18 2006
approved