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: A123442 A123405 A123457 * A123447 A123461 A123407
Adjacent sequences: A123452 A123453 A123454 * A123456 A123457 A123458
nonn,more
N. J. A. Sloane, Oct 18 2006
approved