3,1

Table of n, a(n) for n=3..8.

Eric Weisstein's World of Mathematics, Hamiltonian Path

Eric Weisstein's World of Mathematics, Torus Grid Graph

a(n) = 2 * A268838(n). - Andrew Howroyd, May 06 2017

Sequence in context: A236091 A239175 A037150 * A034601 A022059 A134614

Adjacent sequences: A276288 A276289 A276290 * A276292 A276293 A276294

nonn,more

Eric W. Weisstein, Nov 15 2016

a(7)-a(8) from Andrew Howroyd, May 06 2017

approved