A361184 Number of chordless cycles in the n X n queen graph.

0, 0, 12, 228, 2120, 21004, 241186, 3375074, 56315906

Offset

1,3

Comments

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

Links

Table of n, a(n) for n=1..9.

Eric Weisstein's World of Mathematics, Chordless Cycle

Eric Weisstein's World of Mathematics, Queen Graph

Crossrefs

Sequence in context: A357410 A300561 A358948 * A358362 A337332 A290754

Adjacent sequences: A361181 A361182 A361183 * A361185 A361186 A361187

Keyword

nonn,more

Author

Eric W. Weisstein, Mar 03 2023

Extensions

a(8) from Andrew Howroyd, Mar 03 2023

a(9) from Eric W. Weisstein, Mar 07 2023

Status

approved