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A222570 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

%I A222570 #6 Jul 23 2025 02:46:32
%S A222570 5,25,134,3516,30766,881766,9004283,287554360,2996904309,97314847813,
%T A222570 1017926334514,33241999169841,348578922829704,11400450205720554,
%U A222570 119870153063857315,3922257706849216462,41351192613216141769
%N A222570 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
%C A222570 Column 5 of A222573
%H A222570 R. H. Hardin, <a href="/A222570/b222570.txt">Table of n, a(n) for n = 1..53</a>
%e A222570 Some solutions for n=3
%e A222570 ..0..0..0..0..0....0..0..1..0..0....0..0..0..0..1....0..1..2..2..2
%e A222570 ..0..0..0..1..0....0..0..0..0..0....0..0..0..0..0....0..2..2..2..2
%e A222570 ..0..0..0..0..0....0..0..0..0..2....2..0..0..0..0....2..2..2..2..2
%K A222570 nonn
%O A222570 1,1
%A A222570 _R. H. Hardin_ Feb 25 2013