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A302958
Number of 7Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
0, 1172, 164916, 12365841, 1212025201, 130376252119, 13578993819785, 1403559107071889, 145479455454006812, 15089882967228651401, 1564791955810116030473, 162255388684026120105462
OFFSET
1,2
COMMENTS
Row 7 of A302953.
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
..0..0..0..0..0. .0..0..0..1..0. .0..0..0..1..0. .0..0..0..1..0
..0..0..1..1..0. .0..0..1..0..0. .0..0..1..1..0. .0..0..1..1..0
..0..0..0..0..0. .0..0..1..0..0. .0..0..0..0..0. .0..0..0..0..1
..0..1..0..0..0. .1..1..1..1..1. .0..1..1..0..0. .0..1..0..0..0
..0..0..1..1..0. .0..1..1..0..1. .1..0..1..0..1. .1..1..1..0..0
..1..1..1..0..0. .1..0..1..0..0. .1..1..1..1..1. .1..1..0..1..1
CROSSREFS
Cf. A302953.
Sequence in context: A230738 A302386 A303107 * A232082 A187725 A269958
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 16 2018
STATUS
approved