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A230175 Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value 2-x(i,j) 1
63, 530771, 704822331, 1027868078181, 1514677019365483, 2222884630214739547, 3274958849115023706081, 4822680345112751878337083, 7098618594645882579322969411, 10449577732703043756255819628725 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A230176

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..28

EXAMPLE

Some solutions for n=3

..0..0..0..0..2..1..1....0..0..0..0..2..0..1....0..0..0..0..1..2..0

..2..0..2..2..1..2..1....2..0..2..2..2..1..2....2..0..2..0..0..1..1

..0..0..0..2..0..1..0....0..0..0..0..0..0..2....0..0..0..2..2..0..1

CROSSREFS

Sequence in context: A229846 A230674 A229933 * A263164 A132591 A116232

Adjacent sequences:  A230172 A230173 A230174 * A230176 A230177 A230178

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 11 2013

STATUS

approved

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Last modified July 24 21:47 EDT 2021. Contains 346273 sequences. (Running on oeis4.)