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A279490 Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%I A279490 #4 Dec 13 2016 12:19:15
%S A279490 3,18,254,2684,26157,246237,2241332,19885341,172968364,1481176019,
%T A279490 12518566165,104634697841,866300549164,7113499311107,57991161908834,
%U A279490 469750378139503,3783568376847729,30319325084628268,241845032680119474
%N A279490 Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
%C A279490 Column 4 of A279494.
%H A279490 R. H. Hardin, <a href="/A279490/b279490.txt">Table of n, a(n) for n = 1..210</a>
%e A279490 Some solutions for n=4
%e A279490 ..0..1..1..1. .0..0..0..0. .0..1..0..0. .0..1..0..1. .0..1..1..0
%e A279490 ..0..1..0..1. .1..0..1..1. .0..1..0..0. .0..1..0..0. .1..1..0..1
%e A279490 ..0..1..0..0. .1..1..0..1. .0..0..1..1. .1..1..0..1. .0..0..1..1
%e A279490 ..0..1..0..1. .0..0..1..0. .1..1..0..1. .1..0..1..0. .0..1..0..0
%Y A279490 Cf. A279494.
%K A279490 nonn
%O A279490 1,1
%A A279490 _R. H. Hardin_, Dec 13 2016