A250950 Number of (n+1)X(n+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

15, 392, 36016, 11633448, 13211127617, 52746349035592, 740399698245965774, 36539401198968631193728, 6339835499950780464168370698, 3867371786117427361119320198505328

Offset: 1

Author

R. H. Hardin, Nov 28 2014

Keywords

• nonn

Comments

Diagonal of A250956

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..19