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A232196 Number of (n+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, vertical or antidiagonal neighbor 0

%I

%S 15,2129,2064527,16237318767,1024215443152687,515298827433540888151,

%T 2068734726208811311397436981,66293423431894237647538826697163203

%N Number of (n+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, vertical or antidiagonal neighbor

%C Diagonal of A232204

%e Some solutions for n=2

%e ..2..1..0....0..0..1....2..2..0....2..2..0....1..0..0....1..1..2....0..1..2

%e ..2..0..0....0..2..0....2..1..0....0..1..0....2..2..2....2..2..0....0..2..2

%e ..2..2..2....2..2..0....2..1..1....0..2..2....0..0..2....0..0..0....2..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 20 2013

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Last modified June 28 01:48 EDT 2022. Contains 354903 sequences. (Running on oeis4.)