Includes complete graphs K_n according to the "vacuous truth" convention that statements like "for all X in Y: P(X)" are true if Y is the empty set.
Table of n, a(n) for n=1..10.
Eric Weisstein's World of Mathematics, Ore Graph
Eric Weisstein's World of Mathematics, Ore's Theorem
Cf. A264683 (number of Hamiltonian graphs not satisfying Ore's criterion).
Sequence in context: A235136 A153862 A266203 * A286033 A056803 A071706
Adjacent sequences: A264680 A264681 A264682 * A264684 A264685 A264686
Eric W. Weisstein, Dec 03 2015