A251246 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.

351891, 173028393, 85032883789, 41786532918513, 20534495636679387, 10090935221593972941, 4958824382557190011939, 2436834428903758977300429, 1197493907250619474216993239, 588464952033721324797933672285

Offset: 1

Author

R. H. Hardin, Dec 01 2014

Keywords

• nonn

Comments

Column 5 of A251249

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 51

Formula

Empirical recurrence of order 51 (see link above)