A250971 Number of (n+1)X(6+1) 0..1 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.

7448, 489543, 32124018, 2112130109, 138900769559, 9135168475316, 600808386292820, 39514486757351514, 2598824818868706096, 170921926401546121395, 11241352463500152822391, 739331740764868834365986

Offset: 1

Author

R. H. Hardin, Nov 29 2014

Keywords

• nonn

Comments

Column 6 of A250973

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 57

Formula

Empirical recurrence of order 57 (see link above)