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A267672
Number of 7Xn 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.
1
33, 2178, 23967, 508681, 3351233, 49212395, 264709135, 3440837625, 16542903583, 209284190883, 930275727707, 11993946979651, 49948696841159, 673353248482869, 2639663600329837, 37779497780890237, 139596586349861267
OFFSET
1,1
COMMENTS
Row 7 of A267667.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1....0..0..1....0..1..0....0..1..0....0..1..1....0..0..1....0..0..1
..0..1..1....0..0..1....1..0..1....0..1..1....1..0..1....1..0..0....1..0..0
..0..1..0....0..0..1....0..0..1....1..1..0....0..1..1....0..1..0....0..0..1
..1..0..1....1..1..0....0..0..1....0..0..1....1..0..0....1..0..0....1..1..0
..0..1..1....0..0..1....0..1..0....0..1..1....0..1..1....0..1..0....1..0..0
..0..1..0....0..0..1....0..0..1....1..1..0....1..1..0....1..0..0....1..0..0
..0..1..1....0..1..0....1..0..0....0..0..1....0..1..1....0..1..1....1..0..0
CROSSREFS
Cf. A267667.
Sequence in context: A120288 A284112 A099370 * A283533 A294773 A294611
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 19 2016
STATUS
approved