A250906 Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

74, 13401, 18077319, 181725094746, 13614176466285177, 7601083164098734394079, 31627738616791159166366474706, 980775577015597559408509097508207843, 226662690545871494601898816284099112431799133

Offset: 1

Author

R. H. Hardin, Nov 28 2014

Keywords

• nonn

Comments

Diagonal of A250913

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..10