A251093 Number of (n+1)X(n+1) 0..1 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

13, 212, 9597, 1175519, 391088995, 353489877714, 867470863709067, 5781820357157777986, 104649732973693543280042, 5143991426222399264506760205, 686661619658213553959701988139993

Offset: 1

Author

R. H. Hardin, Nov 29 2014

Keywords

• nonn

Comments

Diagonal of A251100

Examples

			Some solutions for n=3
..1..0..0..1....1..0..0..0....1..1..1..1....0..0..1..0....1..0..1..0
..0..1..0..1....0..0..1..1....0..0..0..1....1..0..0..0....1..0..1..1
..0..0..0..1....1..0..0..0....0..0..0..0....1..0..1..1....1..0..0..0
..1..0..0..1....0..0..1..0....0..0..1..0....0..0..0..1....1..0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..15