Using the "vacuous truth" convention so that complete graphs K_n are considered to be Ore graphs.
Table of n, a(n) for n=1..10.
Eric Weisstein's World of Mathematics, Ore Graph
Cf. A264683 (number of simple graphs which satisfy the Ore criterion for Hamiltonicity).
Cf. A003216 (number of simple Hamiltonian graphs).
Sequence in context: A290576 A291315 A078532 * A217363 A234462 A153853
Adjacent sequences: A264681 A264682 A264683 * A264685 A264686 A264687
Eric W. Weisstein, Dec 03 2015