3,1

Table of n, a(n) for n=3..66.

Eric Weisstein's World of Mathematics, Clique

Eric Weisstein's World of Mathematics, Cycle Graph

a(n) = 2*n+1 for n > 3.

Sequence in context: A120201 A188056 A128234 * A087668 A120176 A139049

Adjacent sequences: A308599 A308600 A308601 * A308603 A308604 A308605

nonn,easy

Eric W. Weisstein, Jun 09 2019

approved