A254456 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally and vertically.

6440848, 289945200, 14531913928, 623402653056, 25559706957728, 1041397026476012, 41728495959588032, 1663022535691018136, 66242299786253394624, 2638365158866570322184, 105052207003477821889696

Offset: 1

Author

R. H. Hardin, Jan 30 2015

Keywords

• nonn

Comments

Column 7 of A254457

Examples

			Some solutions for n=1
..0..0..0..0..1..0..1..1..0....0..0..0..0..0..0..0..0..0
..0..0..1..1..0..1..0..0..0....1..1..0..0..0..0..1..0..1
..0..1..0..1..1..0..0..0..0....1..1..1..0..0..0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..47