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A283571
Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.
1
26, 2832, 104464, 3890056, 129527524, 4173039716, 129997769458, 3965206666608, 118919078661476, 3520469545329364, 103128721861954074, 2995091644500263428, 86357662212925835570, 2474720063522591410712, 70543862532039328231208
OFFSET
1,1
COMMENTS
Column 7 of A283572.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..0..1..1..1. .0..1..0..0..0..0..1. .0..0..0..0..0..0..0
..0..0..0..0..0..0..0. .0..0..0..1..1..0..1. .1..0..0..0..0..1..0
..1..1..0..1..1..0..0. .1..0..1..0..1..0..0. .0..1..1..0..0..0..0
CROSSREFS
Cf. A283572.
Sequence in context: A263946 A358164 A172010 * A377637 A283041 A183068
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 11 2017
STATUS
approved