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Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6
1

%I #4 Dec 14 2013 07:47:24

%S 12073496,6552999568,3530630987208,2127910272105792,

%T 1299207938978711788,807381482186804765728,503834532970292342872224,

%U 315668050076034647825083096,198001373547025265433700559818

%N Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6

%C Column 7 of A233635

%H R. H. Hardin, <a href="/A233634/b233634.txt">Table of n, a(n) for n = 1..172</a>

%e Some solutions for n=1

%e ..0..0..0..3..3..3..0..1....0..0..0..1..0..1..0..0....0..0..0..3..3..1..3..2

%e ..0..3..1..1..0..3..3..3....0..3..3..3..1..3..3..3....0..3..2..3..0..1..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 14 2013