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A303253
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
8, 1934, 21843, 584333, 13529019, 322544617, 7600681910, 181926316054, 4319287740641, 102749087683745, 2445959829763007, 58194271138697372, 1384700107834934771, 32952218084019479209, 784117840394793531854
OFFSET
1,1
COMMENTS
Column 7 of A303254.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1..1..1. .0..1..1..0..0..1..1. .0..0..1..1..1..1..1
..0..0..0..0..1..0..0. .0..0..0..1..1..0..1. .0..1..0..1..0..0..1
..0..0..0..0..0..0..0. .0..1..0..0..0..0..1. .0..0..0..0..0..1..0
..0..0..1..1..1..0..1. .0..0..1..1..1..1..0. .0..0..1..1..0..1..1
..0..0..0..0..1..1..0. .0..0..0..0..0..0..1. .0..0..0..0..0..0..1
CROSSREFS
Cf. A303254.
Sequence in context: A302223 A302669 A302471 * A076955 A362292 A024112
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 20 2018
STATUS
approved