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 A183443 Number of n X n binary arrays with every 1 having exactly two king-move neighbors equal to 1 0
 1, 5, 18, 72, 2054, 53608, 1744887, 216103851, 39184763856, 11314547102638, 7873316318240100, 9711485486581483616, 21262647899259681841579 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A183450 LINKS Table of n, a(n) for n=1..13. EXAMPLE Some solutions for 5X5 ..0..0..0..0..0....0..0..0..1..0....0..0..1..0..0....0..1..0..0..0 ..1..0..0..0..0....0..1..1..0..1....0..1..0..1..0....1..1..0..1..0 ..1..1..0..1..1....1..0..0..0..1....1..0..0..0..1....0..0..0..1..1 ..0..0..0..0..1....1..0..0..0..1....1..0..0..0..1....1..1..0..0..0 ..0..0..0..0..0....0..1..1..1..0....0..1..1..1..0....0..1..0..0..0 CROSSREFS Sequence in context: A302077 A322773 A145780 * A034551 A052926 A296123 Adjacent sequences: A183440 A183441 A183442 * A183444 A183445 A183446 KEYWORD nonn AUTHOR R. H. Hardin Jan 04 2011 STATUS approved

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Last modified June 9 03:24 EDT 2023. Contains 363168 sequences. (Running on oeis4.)