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A297681
Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
1
81, 1632, 52889, 1519630, 45865837, 1368968852, 41030621948, 1229127412701, 36837288191422, 1103993847036050, 33088254114520559, 991712287397354032, 29723613829882860702, 890879134522839275761, 26701570968782131551720
OFFSET
1,1
COMMENTS
Column 7 of A297682.
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0..0..0..0..1. .1..0..0..0..0..0..0. .0..0..0..0..1..0..0
..1..0..1..0..0..0..0. .0..0..1..0..0..0..1. .1..0..0..0..0..0..1
..1..1..1..0..1..0..1. .0..1..0..0..0..0..1. .0..0..0..1..1..0..0
CROSSREFS
Cf. A297682.
Sequence in context: A237559 A223279 A096302 * A237404 A237549 A107914
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2018
STATUS
approved