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%I #4 Dec 17 2013 07:07:41
%S 240,1224,6200,33656,178704,1015656,5566176,32573400,181919416,
%T 1082482200,6108586496,36673057320,208076709744,1254938417144,
%U 7140038828344,43162651207096,245918525589328,1488348259767656
%N Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11
%C Column 3 of A233883
%H R. H. Hardin, <a href="/A233878/b233878.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 56*a(n-2) -819*a(n-4) +2791*a(n-6) -3096*a(n-8) +961*a(n-10) -84*a(n-12)
%e Some solutions for n=5
%e ..0..0..0..2....1..0..1..0....0..2..0..2....0..1..2..1....0..1..2..1
%e ..1..2..1..0....0..2..0..2....2..1..2..1....2..0..0..2....2..0..0..2
%e ..2..0..2..0....2..1..2..1....2..0..2..0....1..2..1..2....1..2..1..0
%e ..1..0..1..0....2..0..2..0....0..1..0..1....0..2..0..2....0..2..0..2
%e ..2..0..2..0....2..1..0..1....2..0..2..0....1..2..1..2....2..1..0..1
%e ..0..1..2..1....0..0..2..0....0..1..0..1....2..0..0..0....0..0..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2013
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