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A302074 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
64, 8192, 190528, 6048836, 180330117, 5420105343, 163660519064, 4926680696151, 148486135409554, 4473321647227168, 134766772583347037, 4060050293871714740, 122318436951115950082, 3685280972257096460292, 111034886878989197205405 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A302069.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0
..0..0..1..0..0. .0..0..1..0..0. .0..0..1..0..0. .0..0..1..0..1
..0..0..1..0..1. .0..1..1..0..0. .0..0..1..0..1. .1..0..0..0..0
..0..1..1..0..1. .0..0..1..1..1. .0..1..0..1..1. .1..0..1..1..1
..0..1..0..0..1. .0..1..0..1..0. .1..1..0..1..0. .0..1..0..1..0
..0..1..0..0..0. .0..1..0..1..0. .0..1..0..0..1. .0..1..0..1..0
CROSSREFS
Cf. A302069.
Sequence in context: A301847 A302970 A291832 * A302813 A303474 A305522
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2018
STATUS
approved

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Last modified July 17 22:17 EDT 2024. Contains 374377 sequences. (Running on oeis4.)