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A281801 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%I A281801 #4 Jan 30 2017 10:40:59
%S A281801 15,1631,29665,396185,4480480,45696162,436154254,3971817891,
%T A281801 34908793027,298606378335,2499056501051,20543237322520,
%U A281801 166370690422967,1330405801987723,10523787698414884,82464458555125786,640879467060438623
%N A281801 Number of nX7 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
%C A281801 Column 7 of A281802.
%H A281801 R. H. Hardin, <a href="/A281801/b281801.txt">Table of n, a(n) for n = 1..210</a>
%e A281801 Some solutions for n=3
%e A281801 ..0..0..0..0..1..1..1. .0..0..0..0..0..0..0. .0..0..0..1..1..0..1
%e A281801 ..1..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..0..1..1..1..0..0
%e A281801 ..0..0..1..1..1..0..1. .1..1..1..0..1..1..1. .0..0..0..1..0..0..0
%Y A281801 Cf. A281802.
%K A281801 nonn
%O A281801 1,1
%A A281801 _R. H. Hardin_, Jan 30 2017