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A183369 Number of n X n binary arrays with no element equal to the mod 3 sum of its diagonal and antidiagonal neighbors 0
1, 4, 6, 49, 195, 3969, 285516, 22743361, 3414837564, 1467194393284, 1549197261403648, 3156509484479021584, 11694530363878786782540, 91853775938916496321710336 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A183374
LINKS
EXAMPLE
Some solutions for 5X5
..1..1..0..1..0....0..1..0..0..0....0..1..0..0..1....0..0..1..1..0
..0..0..0..1..0....1..1..1..1..0....0..1..0..0..1....1..1..0..1..0
..0..1..1..1..1....0..1..0..1..0....1..1..1..0..0....1..0..0..1..1
..0..1..0..1..0....0..0..1..0..1....0..1..0..1..1....1..1..0..1..0
..0..1..1..1..0....1..0..1..1..1....0..1..1..0..0....0..0..1..1..0
CROSSREFS
Sequence in context: A355231 A066348 A330978 * A241159 A116656 A012933
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2011
STATUS
approved

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Last modified July 6 21:56 EDT 2024. Contains 374058 sequences. (Running on oeis4.)