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 A232420 Number of (6+1) X (n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor. 1

%I

%S 129323,296516955,262249675165,327861770666547,456432801562470697,

%T 615510832230066725429,822137990659058660737125,

%U 1101041057525847742112638843,1476078911426379672702566687669

%N Number of (6+1) X (n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.

%C Row 6 of A232414.

%H R. H. Hardin, <a href="/A232420/b232420.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

%Y Cf. A232414.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 23 2013

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Last modified November 27 06:44 EST 2022. Contains 358362 sequences. (Running on oeis4.)