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A296319
Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1.
1
13, 301, 2747, 37431, 490668, 6069953, 78105580, 994666167, 12644605701, 161191403242, 2052476777491, 26138049499179, 332906349627080, 4239664089907890, 53994948962929686, 687661857639787158
OFFSET
1,1
COMMENTS
Column 7 of A296320.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..1..0..0. .0..1..1..0..1..0..0. .0..0..0..1..0..0..1
..0..1..0..0..1..0..0. .0..0..0..1..0..0..0. .0..0..0..1..0..1..0
..0..0..1..0..0..0..0. .0..1..0..0..0..1..1. .0..1..0..0..0..0..0
..0..1..0..0..0..0..1. .0..1..0..0..0..0..0. .1..0..1..0..0..0..0
..0..0..1..1..0..1..0. .0..0..1..1..0..0..0. .0..0..1..0..0..1..1
CROSSREFS
Cf. A296320.
Sequence in context: A317632 A076130 A035272 * A009119 A322734 A331657
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 10 2017
STATUS
approved