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

1,1

Comments

Column 7 of A222144

Links

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

Example

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

Crossrefs

Sequence in context: A223880 A223805 A223583 * A185565 A013849 A016800

Adjacent sequences: A222140 A222141 A222142 * A222144 A222145 A222146

Keyword

nonn

Author

R. H. Hardin Feb 09 2013

Status

approved