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A232160 Number of nX7 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, vertically or antidiagonally, and no adjacent values equal.

%I A232160 #6 Jul 23 2025 06:56:19
%S A232160 48,9004,124436,1767266,26694774,415332300,6564512068,103384156384,
%T A232160 1636124088162,25973583237174,411171410014356,6519608941018384,
%U A232160 103473233282931542,1639791299611784558,26009017324816484476
%N A232160 Number of nX7 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, vertically or antidiagonally, and no adjacent values equal.
%C A232160 Column 7 of A232161
%H A232160 R. H. Hardin, <a href="/A232160/b232160.txt">Table of n, a(n) for n = 1..210</a>
%e A232160 Some solutions for n=3
%e A232160 ..2..3..2..0..2..3..0....3..1..2..3..2..1..3....3..1..3..2..1..0..1
%e A232160 ..1..0..3..1..0..2..1....2..3..1..0..3..0..1....0..2..1..0..2..3..2
%e A232160 ..3..1..2..3..1..3..0....1..0..3..1..2..3..2....1..3..2..3..0..1..0
%K A232160 nonn
%O A232160 1,1
%A A232160 _R. H. Hardin_, Nov 19 2013