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A251159 Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements 0
96, 5054, 231618, 12191612, 1203787298, 190531611192, 50643184293432, 19416483125259158, 12122837536950012216, 11807644473938508493957, 18430004981764028431520387 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A251167
LINKS
EXAMPLE
Some solutions for n=2
..0..1..1....1..2..3....1..0..2....1..0..3....0..3..3....0..2..2....0..3..3
..0..0..1....0..0..1....2..0..0....1..0..3....0..0..2....2..0..1....1..0..3
..1..1..0....3..2..1....3..2..0....3..1..0....1..0..0....3..3..2....3..1..0
CROSSREFS
Sequence in context: A035743 A035809 A017759 * A004392 A229585 A093296
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 30 2014
STATUS
approved

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Last modified May 18 18:37 EDT 2024. Contains 372664 sequences. (Running on oeis4.)