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A302894
Number of 7Xn 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
64, 21, 8968, 28594, 2059835, 60501563, 2899297652, 133518102376, 6327934680000, 307776560940205, 14923956123066383, 730433298641263668, 35734411310196784099, 1751985608336100700720, 85921025124831969145232
OFFSET
1,1
COMMENTS
Row 7 of A302889.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..1..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..0..1. .0..0..0..1..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..1..0..0. .1..0..1..1..1. .0..1..1..1..1. .1..1..1..0..0
..1..0..1..1..1. .0..0..0..0..1. .0..0..1..1..1. .0..1..1..0..0
..0..1..1..1..1. .1..0..0..1..1. .1..0..1..1..0. .1..1..0..1..1
..0..0..0..0..0. .1..0..0..1..1. .1..0..0..1..1. .0..0..0..1..0
..1..0..0..0..0. .0..0..0..1..1. .1..0..0..1..1. .0..0..1..1..1
CROSSREFS
Cf. A302889.
Sequence in context: A303247 A302373 A303089 * A303629 A302520 A302685
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 15 2018
STATUS
approved