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A233072 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.

%I A233072 #6 Jul 23 2025 07:51:16
%S A233072 365,57122,11235652,2293174089,475027244071,98950914937033,
%T A233072 20656955820980290,4315955749032401626,902039316691285768305,
%U A233072 188549438666892024287013,39413397925167802927174270
%N A233072 Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
%C A233072 Column 7 of A233073
%H A233072 R. H. Hardin, <a href="/A233072/b233072.txt">Table of n, a(n) for n = 1..210</a>
%e A233072 Some solutions for n=2
%e A233072 ..0..1..0..1..1..1..0....0..0..1..1..0..1..1....0..0..1..0..1..0..0
%e A233072 ..0..1..0..0..1..0..0....1..1..0..1..0..0..0....0..1..1..0..1..0..1
%K A233072 nonn
%O A233072 1,1
%A A233072 _R. H. Hardin_, Dec 03 2013