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A233720 Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26 1

%I #4 Dec 15 2013 05:59:29

%S 11016,101644,998048,10950676,122218188,1417835712,16483703564,

%T 194721929436,2296636990520,27285817326088,323545654903716,

%U 3850382758561204,45752439516588968,544695951621853076

%N Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26

%C Column 3 of A233724

%H R. H. Hardin, <a href="/A233720/b233720.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..5..1..3..6....3..7..7..6....3..3..3..3....2..5..2..3....6..4..1..4

%e ..4..4..1..4....6..6..3..6....4..0..4..0....2..6..6..3....4..1..3..1

%e ..0..1..3..6....7..3..1..4....1..0..1..0....3..3..2..2....6..4..6..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 15 2013

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