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: A148128 A148129 A340651 * A345216 A151398 A090899
Adjacent sequences: A123429 A123430 A123431 * A123433 A123434 A123435
nonn,more
N. J. A. Sloane, Oct 18 2006
approved