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A223040 Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

%I A223040 #5 Jul 23 2025 03:24:53
%S A223040 34,17356,8580619,7361951209,3829674402996,3416064879339302,
%T A223040 1823295483454946374,1658639508054654478479,898959521235518459497060,
%U A223040 827155543754315639990554261
%N A223040 Number of nX5 0..3 arrays with no more than floor(nX5/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
%C A223040 Column 5 of A223041
%e A223040 Some solutions for n=3
%e A223040 ..0..0..1..2..2....0..0..1..0..2....0..0..1..2..2....0..0..1..0..1
%e A223040 ..2..0..0..3..0....0..0..3..0..3....2..0..3..0..1....2..0..1..2..0
%e A223040 ..0..3..1..3..2....1..2..2..1..3....1..0..2..1..2....1..0..3..0..3
%K A223040 nonn
%O A223040 1,1
%A A223040 _R. H. Hardin_ Mar 12 2013