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: A123436 A123417 A123419 * A123470 A123450 A052431
Adjacent sequences: A123448 A123449 A123450 * A123452 A123453 A123454
nonn,more
N. J. A. Sloane, Oct 18 2006
approved