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A231269 Number of (7+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

%I A231269 #6 Jul 23 2025 06:21:56
%S A231269 5462,129329,2848550,72212345,1911322499,53369789699,1496478177166,
%T A231269 42743970963033,1224046292071020,35220701171406897,
%U A231269 1014732292225672289,29277261630263523080,845121666173764151769,24406166622526862441263
%N A231269 Number of (7+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.
%C A231269 Row 7 of A231263
%H A231269 R. H. Hardin, <a href="/A231269/b231269.txt">Table of n, a(n) for n = 1..20</a>
%e A231269 Some solutions for n=3
%e A231269 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
%e A231269 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
%e A231269 ..0..0..0..1....0..0..0..1....0..0..0..1....1..1..0..0....1..1..0..1
%e A231269 ..0..0..1..1....0..0..1..1....0..1..1..1....1..1..1..1....1..0..1..1
%e A231269 ..2..2..2..2....2..2..1..1....1..1..1..1....1..1..1..0....0..1..1..2
%e A231269 ..2..2..1..1....2..2..2..2....2..2..2..2....0..0..0..1....2..2..2..1
%e A231269 ..1..1..1..0....1..1..0..0....2..2..1..1....2..2..1..1....2..2..1..0
%e A231269 ..1..1..0..0....1..0..0..0....2..1..1..1....2..1..1..1....1..1..0..0
%K A231269 nonn
%O A231269 1,1
%A A231269 _R. H. Hardin_, Nov 06 2013