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A303530
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
64, 86, 687, 4112, 56046, 965150, 15768709, 258412452, 4730074082, 89182240009, 1607792486756, 28651954738510, 525363767853510, 9705710828046354, 176560700611952149, 3198325214799036047, 58453456076912623357
OFFSET
1,1
COMMENTS
Row 7 of A303525.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..0..0..1. .0..1..0..1..0. .0..1..0..0..0
..1..1..0..1..0. .1..0..0..0..0. .0..1..1..0..0. .0..1..0..1..0
..0..1..0..1..0. .0..0..1..0..1. .1..0..1..1..0. .0..1..0..1..0
..0..0..0..1..0. .1..0..0..0..1. .1..0..1..1..0. .0..1..0..0..0
..0..1..0..1..0. .0..0..0..0..0. .1..0..1..1..1. .1..1..0..1..0
..0..1..1..1..0. .1..0..0..0..1. .1..0..1..1..1. .0..1..0..1..1
..0..1..0..0..0. .1..0..1..0..1. .0..1..1..1..0. .0..1..0..1..0
CROSSREFS
Cf. A303525.
Sequence in context: A302315 A303045 A302882 * A119894 A138667 A290462
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 25 2018
STATUS
approved