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Number of (5+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor
2

%I #4 Nov 21 2013 06:26:02

%S 3209,591181,141815403,40896843985,12109668893083,3525883938158361,

%T 1028773221352198121,300257692620940074459,87630614228503641330187,

%U 25574534124528893439716193,7463801896068471338516369509

%N Number of (5+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor

%C Row 5 of A232257

%H R. H. Hardin, <a href="/A232262/b232262.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 21 2013