1,2

Is this the same as A000081 with a different offset?

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

S. Hougardy, Home Page

Sequence in context: A145546 A034826 A145547 this_sequence A145548 A145549 A145550

Adjacent sequences: A123464 A123465 A123466 this_sequence A123468 A123469 A123470

nonn

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