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A219141 Unchanging value maps: number of nX7 binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX7 array.

%I A219141 #6 Jul 23 2025 00:16:10
%S A219141 37,543,15255,341648,7640541,170792866,3862325048,87205791997,
%T A219141 1964627314453,44248075120119,997182574575448,22477181379388546,
%U A219141 506606543634822152,11417623925479199496,257329160512779838675
%N A219141 Unchanging value maps: number of nX7 binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX7 array.
%C A219141 Column 7 of A219142
%H A219141 R. H. Hardin, <a href="/A219141/b219141.txt">Table of n, a(n) for n = 1..21</a>
%e A219141 Some solutions for n=3
%e A219141 ..0..0..1..0..1..0..0....0..0..0..1..1..1..1....0..0..0..0..0..1..0
%e A219141 ..1..0..0..0..0..0..0....0..0..0..0..1..0..1....0..1..0..1..0..0..0
%e A219141 ..0..0..0..0..0..1..0....0..0..1..0..0..0..1....1..1..0..0..0..0..0
%K A219141 nonn
%O A219141 1,1
%A A219141 _R. H. Hardin_ Nov 12 2012