A254452 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally and vertically.

16240, 196684, 2085712, 19716320, 180449544, 1621936236, 14531913928, 129887483092, 1161335601368, 10386990863516, 92949534517728, 831971480294236, 7447848925974544, 66677163384618652, 596944337713575200

Offset: 1

Author

R. H. Hardin, Jan 30 2015

Keywords

• nonn

Comments

Column 3 of A254457

Examples

			Some solutions for n=2
..0..1..1..1..0....0..0..1..0..1....0..1..0..1..0....1..1..1..1..0
..1..1..0..1..0....1..1..1..1..1....0..0..1..1..0....0..0..1..1..1
..0..1..0..0..1....1..1..1..0..0....1..0..0..0..0....1..1..0..0..0
..0..0..1..0..1....0..0..1..0..1....1..0..1..1..0....1..0..0..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 73

Formula

Empirical recurrence of order 73 (see link above)