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A222904 Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

%I A222904 #6 Jul 23 2025 03:14:20
%S A222904 14,403,18981,1346067,115414184,10615237672,997770825049,
%T A222904 94604903182085,9012490921248651,861543012964481923,
%U A222904 82597017010401785014,7938843940520801537695,764786022222127620615363
%N A222904 Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
%C A222904 Column 6 of A222906
%H A222904 R. H. Hardin, <a href="/A222904/b222904.txt">Table of n, a(n) for n = 1..48</a>
%e A222904 Some solutions for n=3
%e A222904 ..0..0..1..0..1..2....0..0..0..0..1..1....0..0..0..0..1..0....0..1..1..2..2..2
%e A222904 ..2..2..2..2..2..2....0..0..0..0..2..2....0..0..0..0..1..1....1..2..2..2..2..2
%e A222904 ..2..2..2..2..2..2....0..0..0..2..1..1....0..0..0..2..1..3....3..2..2..2..2..2
%K A222904 nonn
%O A222904 1,1
%A A222904 _R. H. Hardin_ Mar 09 2013