A251798 Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

187000, 27291608, 3934266515, 594938582014, 90717637876583, 13902663302194715, 2134102396738819286, 327882361916540095426, 50392001598117407333828, 7746165276288696623011479

Offset: 1

Author

R. H. Hardin, Dec 09 2014

Keywords

• nonn

Comments

Column 5 of A251801

Examples

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

Links

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