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A267978
Number of 4Xn 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
1
222, 49284, 10941048, 2208460532, 422888259007, 77239556027716, 13568675256814069, 2305686585583566677, 380719989364128125411, 61309427889879303297626, 9657019976002416918553516
OFFSET
1,1
COMMENTS
Row 4 of A267974.
LINKS
EXAMPLE
Some solutions for n=2
..2..2....3..2....1..0....2..3....0..1....3..0....3..2....3..0....2..2....0..0
..3..2....1..2....3..0....2..0....3..1....2..2....2..3....1..0....1..3....1..0
..3..1....1..3....1..1....1..0....2..2....1..1....2..0....0..1....0..2....2..1
..2..0....3..2....1..1....2..2....0..0....0..2....3..2....0..1....2..1....0..2
CROSSREFS
Cf. A267974.
Sequence in context: A268024 A267931 A268017 * A234623 A252956 A163653
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved