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A280160 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%I A280160 #4 Dec 27 2016 09:22:53
%S A280160 15,208,2901,30874,318220,3138340,30089398,285461736,2671391625,
%T A280160 24767920958,227975959120,2085061428192,18968539604655,
%U A280160 171769706597400,1549174969429286,13922125649869206,124717748809003344
%N A280160 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
%C A280160 Column 7 of A280161.
%H A280160 R. H. Hardin, <a href="/A280160/b280160.txt">Table of n, a(n) for n = 1..210</a>
%e A280160 Some solutions for n=4
%e A280160 ..0..0..0..0..0..0..0. .0..1..0..0..0..0..1. .0..0..1..0..0..0..0
%e A280160 ..0..0..0..0..1..0..0. .0..0..0..0..0..1..1. .0..1..1..0..0..0..1
%e A280160 ..0..0..1..1..0..0..1. .0..0..0..0..1..1..0. .1..1..1..0..1..1..1
%e A280160 ..0..1..1..1..0..1..1. .0..0..0..1..1..0..0. .1..1..1..1..1..1..1
%Y A280160 Cf. A280161.
%K A280160 nonn
%O A280160 1,1
%A A280160 _R. H. Hardin_, Dec 27 2016