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A233730 Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

%I A233730 #6 Jul 23 2025 08:10:38
%S A233730 7976,115972,1851404,32240288,578163016,10577526052,195088215888,
%T A233730 3616933627344,67204709367712,1250516988640176,23282612726211812,
%U A233730 433669103881115132,8078852328328338404,150521113304511790216
%N A233730 Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.
%C A233730 Column 5 of A233733
%H A233730 R. H. Hardin, <a href="/A233730/b233730.txt">Table of n, a(n) for n = 1..210</a>
%e A233730 Some solutions for n=2
%e A233730 ..3..0..2..3..1..0....3..2..3..2..0..2....1..0..2..3..1..3....2..3..1..0..1..3
%e A233730 ..2..1..0..2..0..2....1..0..1..3..2..3....0..2..3..1..0..1....0..1..2..3..2..1
%e A233730 ..1..3..1..3..1..3....0..2..0..1..0..2....1..0..1..0..2..3....2..3..1..0..1..3
%K A233730 nonn
%O A233730 1,1
%A A233730 _R. H. Hardin_, Dec 15 2013