A391630 Number of mutual-visibility sets in the n X n queen graph.

2, 16, 495, 59944, 24935002, 41465731475

Offset

1,1

Links

Table of n, a(n) for n=1..6.

Eric Weisstein's World of Mathematics, Queen Graph.

Eric Weisstein's World of Mathematics, Visibility Polynomial.

Crossrefs

Sequence in context: A306816 A012461 A012458 * A012171 A068472 A168402

Adjacent sequences: A391627 A391628 A391629 * A391631 A391632 A391633

Keyword

nonn,more

Author

Eric W. Weisstein, Dec 14 2025

Extensions

a(6) from Andrew Howroyd, Jan 19 2026

Status

approved