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A267793
Number of 7Xn 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
1
20, 400, 8000, 102954, 1234716, 13126812, 132388406, 1271314080, 11831791048, 107394660068, 957081246026, 8408442934462, 73058790472446, 629272663467509, 5382292144211926, 45776729662954256, 387532677732355814
OFFSET
1,1
COMMENTS
Row 7 of A267788.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..0..1....0..0..0..1....1..1..1..0....0..0..0..1....0..0..0..0
..0..0..1..0....1..1..1..0....0..0..0..0....1..0..1..0....1..1..0..1
..1..1..0..1....0..0..0..0....0..1..1..1....0..1..0..1....0..0..1..0
..1..0..0..0....0..1..0..1....1..0..0..0....1..0..1..0....1..1..0..1
..0..1..1..1....1..0..1..1....0..0..0..1....0..1..0..0....0..0..1..0
..1..0..0..1....0..1..0..0....1..1..1..0....1..1..1..1....0..0..0..1
..0..1..1..0....1..0..1..1....1..0..1..1....1..0..1..1....1..1..1..1
CROSSREFS
Cf. A267788.
Sequence in context: A189198 A224019 A171294 * A009964 A285874 A007577
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2016
STATUS
approved