A075709 Upper irredundance number for kings graph K_n on n^2 nodes.

1, 1, 4, 4, 9, 9, 16, 17, 25, 27, 36

Offset

1,3

Links

Table of n, a(n) for n=1..11.

Matthew D. Kearse and Peter B. Gibbons, Computational Methods and New Results for Chessboard Problems, Australasian Journal of Combinatorics 23 (2001), 253-284.

Matthew D. Kearse and Peter B. Gibbons, A new lower bound on upper irredundance in the queens' graph, Discrete Math., 256 (2002), 225-242.

Crossrefs

Cf. A075692.

Sequence in context: A168039 A145445 A008794 * A332777 A238629 A192032

Adjacent sequences: A075706 A075707 A075708 * A075710 A075711 A075712

Keyword

nonn,more

Author

Peter Gibbons (peter-g(AT)cs.auckland.ac.nz), Oct 13 2002

Status

approved