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A296540
Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 4 neighboring 1s.
1
1, 45, 654, 5601, 53995, 560942, 5705431, 57470370, 581613058, 5896361722, 59744304510, 605287549399, 6133281385115, 62150472842382, 629792949015747, 6381981797680641, 64672057071608258, 655359047486913615
OFFSET
1,2
COMMENTS
Column 7 of A296541.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1..0..0. .0..0..0..1..1..0..0. .0..0..1..0..0..0..0
..1..1..0..1..0..0..0. .0..1..1..0..1..0..0. .1..1..1..0..0..1..1
..0..0..0..0..0..0..0. .1..0..0..0..1..0..0. .1..0..0..0..0..1..0
..0..1..1..0..1..0..0. .1..0..1..1..0..0..0. .0..0..1..0..0..0..0
..0..1..0..1..1..0..0. .1..1..0..0..0..0..0. .0..1..1..0..0..0..0
CROSSREFS
Cf. A296541.
Sequence in context: A372978 A160234 A110691 * A105251 A099632 A264138
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 15 2017
STATUS
approved