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A233025 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero.

%I A233025 #6 Jul 23 2025 07:47:44
%S A233025 729,67449,9997413,1546718177,245698677999,39386531523609,
%T A233025 6338787392715565,1021854400935817069,164848602838755709211,
%U A233025 26602184763154679609107,4293469218556492461639273
%N A233025 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero.
%C A233025 Column 7 of A233026
%H A233025 R. H. Hardin, <a href="/A233025/b233025.txt">Table of n, a(n) for n = 1..210</a>
%e A233025 Some solutions for n=2
%e A233025 ..0..1..0..1..1..0..1....0..0..1..3..3..3..2....0..2..2..0..0..1..0
%e A233025 ..1..0..0..1..0..1..1....1..0..1..3..2..2..3....2..2..2..0..1..0..1
%K A233025 nonn
%O A233025 1,1
%A A233025 _R. H. Hardin_, Dec 03 2013