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A297019
Number of nX7 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1s.
1
1, 31, 400, 2355, 36508, 732736, 11172600, 193972861, 3611228309, 64457269821, 1160327502568, 21155577779303, 383656455671632, 6955900546813945, 126385734152720432, 2294982721695823548, 41663174884714090303
OFFSET
1,2
COMMENTS
Column 7 of A297020.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..0..1..1. .0..1..1..0..0..1..1. .0..1..1..0..1..1..0
..0..0..1..1..0..1..1. .1..1..1..0..1..1..1. .1..1..0..1..0..1..1
..0..0..1..0..0..0..1. .1..1..0..0..1..0..1. .1..1..1..0..0..0..1
..0..1..1..0..0..1..1. .1..0..1..0..1..1..0. .0..0..0..0..0..1..1
..0..1..1..0..0..1..1. .0..1..1..1..1..0..0. .0..0..0..0..0..1..1
CROSSREFS
Cf. A297020.
Sequence in context: A179465 A142829 A300869 * A022691 A125443 A376063
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 23 2017
STATUS
approved