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A220573 Equals one maps: number of n X n binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 n X n array 0
1, 8, 91, 17505, 3162375, 4239598056, 12835487766480 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A220579
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1....0..1..0....0..0..1....1..1..1....1..0..0....0..1..1....1..1..1
..1..1..1....0..0..0....1..1..0....1..0..1....0..1..1....1..1..1....1..0..0
..1..0..1....0..1..0....0..1..0....1..1..1....1..0..0....1..0..1....0..1..1
CROSSREFS
Sequence in context: A234280 A298013 A302614 * A303743 A187157 A332597
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 16 2012
STATUS
approved

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Last modified July 19 13:57 EDT 2024. Contains 374394 sequences. (Running on oeis4.)