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A183540
Number of nX7 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors
0
73, 3996, 146315, 12593728, 299794777
OFFSET
1,1
COMMENTS
Column 7 of A183541
EXAMPLE
Some solutions for 3X7
..2..2..3..0..1..1..0....1..2..1..2..0..0..1....3..0..2..0..0..0..0
..0..2..2..1..2..0..0....2..1..0..0..2..3..1....3..0..1..2..0..0..2
..2..2..2..2..3..3..0....2..0..1..0..3..1..3....0..0..2..1..2..2..0
CROSSREFS
Sequence in context: A017736 A221826 A093273 * A022242 A015260 A089788
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved