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A183434
Number of n X n binary arrays with every 1 having exactly one king-move neighbor equal to 1
1
1, 7, 29, 361, 10459, 413450, 37904950, 6750242518, 2166586326637, 1414165738392719, 1769976680392262392, 4242277623456129400305, 19897602588709306137305059, 179960590072630530132741409405
OFFSET
1,2
COMMENTS
Diagonal of A183442
LINKS
EXAMPLE
Some solutions for 3X3
..0..1..0....0..0..0....1..1..0....0..1..0....0..1..1....0..0..1....1..0..0
..1..0..0....1..0..0....0..0..0....0..1..0....0..0..0....0..0..1....0..1..0
..0..0..0....0..1..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
CROSSREFS
Sequence in context: A307954 A071918 A375355 * A120789 A135629 A122119
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2011
STATUS
approved