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A251401
Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements
1
1856748750, 61144538351375, 1996093452861010528, 65265944559607354012467, 2133718605852583377537309624, 69758457677840521663637000916478, 2280638230704458493043162111553219014
OFFSET
1,1
COMMENTS
Column 7 of A251402
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..2..1..3..3....0..0..0..0..1..0..2..2....0..0..0..0..0..2..3..1
..0..0..0..2..0..2..3..2....0..0..0..0..1..1..1..3....0..0..0..2..2..1..2..1
CROSSREFS
Sequence in context: A071371 A052094 A256123 * A325900 A251282 A015429
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2014
STATUS
approved