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A283788
Number of 5Xn 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.
1
0, 49, 7298, 174447, 4588054, 109281786, 2393467823, 50718879656, 1038296709087, 20702792249318, 404624633709800, 7774247083948569, 147277082569384849, 2756903798082287236, 51077171924408161253, 937879908134774022823
OFFSET
1,2
COMMENTS
Row 5 of A283784.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0. .0..0..0..1. .0..0..1..1. .1..0..0..0. .1..0..1..0
..0..1..0..0. .0..0..0..0. .1..1..0..1. .1..1..1..0. .1..1..0..1
..1..0..0..1. .1..1..1..1. .1..0..0..0. .1..0..1..1. .1..0..1..1
..0..1..0..1. .0..1..0..1. .1..0..0..1. .0..0..0..1. .0..1..0..1
..1..1..1..0. .1..0..0..0. .1..0..0..0. .1..0..0..0. .0..0..0..0
CROSSREFS
Cf. A283784.
Sequence in context: A130416 A006692 A304313 * A206247 A180273 A351598
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 16 2017
STATUS
approved