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A239160 Number of (7+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order 1

%I

%S 1639,166531,63961519,18120156500,5469574400477,1628795409782566,

%T 486439997897622259,145186363056322713567,43339017958528994310740,

%U 12936602480737955657135546,3861570524893536530703944116

%N Number of (7+1)X(n+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order

%C Row 7 of A239155

%H R. H. Hardin, <a href="/A239160/b239160.txt">Table of n, a(n) for n = 1..42</a>

%e Some solutions for n=2

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

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

%e ..2..1..3....2..1..0....0..1..0....0..1..0....0..1..2....2..1..0....1..0..2

%e ..2..0..3....2..1..2....2..1..0....0..1..0....1..3..2....2..1..3....1..0..2

%e ..1..0..3....1..0..2....2..1..0....2..1..3....1..3..2....3..0..3....1..2..0

%e ..1..3..1....1..0..2....0..3..0....2..1..3....3..2..1....3..0..3....3..2..0

%e ..1..3..1....3..0..1....0..3..2....1..2..1....3..2..1....1..2..0....3..1..2

%e ..1..3..1....3..0..1....0..3..2....1..2..1....3..2..1....1..2..0....3..1..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 11 2014

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Last modified June 25 15:36 EDT 2022. Contains 354851 sequences. (Running on oeis4.)