A222143 Number of nX7 0..4 arrays with no entry increasing mod 5 by 4 rightwards or downwards, starting with upper left zero.

4096, 19307236, 91058563924, 429480137694664, 2025664524518719732, 9554152945600145235628, 45062665956031451017237456, 212540440581498107104494924076, 1002458198124109454670263957843332

Offset: 1

Author

R. H. Hardin Feb 09 2013

Keywords

• nonn

Comments

Column 7 of A222144

Examples

			Some solutions for n=2
..0..0..0..0..1..3..4....0..0..0..0..1..1..4....0..0..0..0..1..3..1
..1..2..0..0..2..4..0....1..2..0..2..2..4..0....2..0..0..2..3..4..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..33