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%I #6 Jul 23 2025 08:14:31
%S 161168,5829956,197246776,8442821772,317752132336,13755592501748,
%T 530020280813856,22858877905193252,889603831608487232,
%U 38192457821678629076,1495266348359989393168,63945337592938269038024
%N Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.
%C Column 7 of A233892
%H R. H. Hardin, <a href="/A233891/b233891.txt">Table of n, a(n) for n = 1..51</a>
%e Some solutions for n=1
%e ..0..2..0..2..0..3..0..2....0..1..3..1..3..1..4..5....6..3..6..3..6..3..2..0
%e ..4..5..1..5..4..2..4..1....3..5..6..2..6..2..6..2....2..1..2..1..2..1..5..4
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2013