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A251316
Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements
1
2189, 20484, 186162, 1720147, 16024915, 149982413, 1401489913, 13088358653, 122472226217, 1147464543755, 10745979550709, 100582710069148, 941698101355544, 8820201458359056, 82614010198580274, 773674969786165964
OFFSET
1,1
COMMENTS
Column 7 of A251317
FORMULA
Empirical recurrence of order 68 (see link above)
EXAMPLE
Some solutions for n=3
..0..1..0..0..0..1..1..0....1..1..0..0..1..1..0..1....0..0..0..1..0..0..0..1
..0..1..1..0..0..0..1..0....0..1..0..0..0..1..0..0....0..0..0..1..1..0..0..1
..0..0..1..0..0..0..1..0....0..1..1..1..0..1..1..0....1..0..0..0..1..0..0..0
..0..0..1..0..0..0..1..0....0..0..0..1..0..0..1..1....1..1..1..0..1..0..0..0
CROSSREFS
Sequence in context: A081865 A085442 A208549 * A320718 A134158 A227488
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved