A361171 Number of chordless cycles in the n X n king graph.

0, 0, 1, 13, 197, 4729, 156806, 7035482, 505265569, 82612843683, 33651820752580, 23922790371389972, 25614853328191562332, 43322613720440154974138, 128405885225433787867253690, 738840753928503040569961869076, 8481241718402438554921627740308746, 179685856472407342498054958799766397100

Offset: 1

Author

Eric W. Weisstein, Mar 03 2023

Keywords

• nonn

Comments

Using the convention that chordless cycles have length >= 4.

Links

• Eric Weisstein's World of Mathematics, Chordless Cycle
• Eric Weisstein's World of Mathematics, King Graph

Crossrefs

Cf. A140519, A234622, A297664, A357501.

Extensions

a(7)-a(18) from Andrew Howroyd, Mar 03 2023