1,2

Is this the same as A033995? - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 18 2008

S. Hougardy, Classes of perfect graphs, Discr. Math. 306 (2006), 2529-2571.

S. Hougardy, Home Page

Sequence in context: A056953 A045611 A006840 this_sequence A033995 A013917 A056893

Adjacent sequences: A123405 A123406 A123407 this_sequence A123409 A123410 A123411

nonn

N. J. A. Sloane (njas(AT)research.att.com), Oct 18 2006