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A251246
Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements
1
351891, 173028393, 85032883789, 41786532918513, 20534495636679387, 10090935221593972941, 4958824382557190011939, 2436834428903758977300429, 1197493907250619474216993239, 588464952033721324797933672285
OFFSET
1,1
COMMENTS
Column 5 of A251249
FORMULA
Empirical recurrence of order 51 (see link above)
EXAMPLE
Some solutions for n=1
..0..2..2..0..0..1....1..0..0..0..2..1....1..2..1..0..2..1....0..1..1..0..1..1
..0..2..2..0..2..2....2..2..1..2..2..2....1..2..2..0..2..1....0..0..2..0..1..0
CROSSREFS
Sequence in context: A274254 A122036 A186822 * A237098 A172664 A172676
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved