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A303181
Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
64, 361, 873, 6668, 88153, 1064399, 11901719, 141429948, 1665576584, 19531596851, 229828243748, 2702369176839, 31772132296596, 373609367008990, 4392997891254184, 51654822706157964, 607381965429018032
OFFSET
1,1
COMMENTS
Column 7 of A303182.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1..0..0. .0..0..1..0..1..0..0. .0..1..1..0..1..1..0
..0..0..1..0..1..0..1. .1..1..1..0..1..0..1. .1..0..0..0..0..0..1
..1..0..1..0..1..1..1. .1..1..1..0..1..0..0. .1..0..1..0..1..0..1
..1..0..1..1..1..0..1. .1..0..1..0..1..1..0. .0..1..1..0..1..0..0
..0..1..0..0..1..0..1. .1..0..1..0..0..1..0. .1..0..1..0..1..1..0
CROSSREFS
Cf. A303182.
Sequence in context: A281468 A302622 A302414 * A017486 A344302 A105918
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 19 2018
STATUS
approved