A251799 Number of (n+1)X(6+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

905440, 195753488, 43510308650, 10280556043804, 2466029519190492, 596244004665414586, 144607697103715449366, 35128978291327271678332, 8539742853066868800341654, 2076797685218066186814306236

Offset: 1

Author

R. H. Hardin, Dec 09 2014

Keywords

• nonn

Comments

Column 6 of A251801

Examples

			Some solutions for n=1
..0..0..0..0..2..1..3....0..0..2..2..3..3..3....0..2..3..3..2..3..3
..0..2..2..2..1..3..2....0..2..1..1..0..3..3....0..0..0..0..1..1..2
		

Links

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