A251227 Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements.

25396, 2814985, 304255924, 33102432698, 3594807908974, 390586327228567, 42432102644410392, 4609884118941107106, 500818517947942768226, 54409178269320447394874, 5911035284990253460656387

Offset: 1

Author

R. H. Hardin, Nov 30 2014

Keywords

• nonn

Comments

Column 7 of A251228

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 99

Formula

Empirical recurrence of order 99 (see link above)