1,2
Table of n, a(n) for n=1..3.
Eric Weisstein's World of Mathematics, Graph Cycle
Eric Weisstein's World of Mathematics, Grid Graph
Sequence in context: A090768 A119180 A088844 * A137942 A099090 A123269
Adjacent sequences: A234617 A234618 A234619 * A234621 A234622 A234623
nonn,bref,hard,more
Eric W. Weisstein, Dec 28 2013
approved