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A222676 Number of nX5 0..3 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..3 order.

%I A222676 #6 Jul 23 2025 02:54:43
%S A222676 5,25,142,5374,69973,3759625,65204276,4282689196,75920948818,
%T A222676 5186372294012,90996224707074,6335072237466211,109968037172246262,
%U A222676 7741427275251672333,133384891659276633714,9457744846017795645816
%N A222676 Number of nX5 0..3 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..3 order.
%C A222676 Column 5 of A222679
%H A222676 R. H. Hardin, <a href="/A222676/b222676.txt">Table of n, a(n) for n = 1..34</a>
%e A222676 Some solutions for n=3
%e A222676 ..0..0..0..0..1....0..1..2..1..1....0..1..1..1..1....0..0..0..1..0
%e A222676 ..0..0..0..0..2....1..1..1..1..1....2..1..1..1..1....0..0..0..1..1
%e A222676 ..0..0..0..0..0....1..1..1..1..1....3..1..1..1..1....0..0..0..1..1
%K A222676 nonn
%O A222676 1,1
%A A222676 _R. H. Hardin_ Feb 28 2013