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%I #4 Dec 19 2015 09:44:26
%S 92,1504,6112,23920,89776,339952,1282192,4848664,18309816,69096768,
%T 260725200,984425248,3713747128,14013775968,52889517856,199579642728,
%U 753070588072,2841950773104,10724343546776,40468052281360
%N Number of nX3 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.
%C Column 3 of A265973.
%H R. H. Hardin, <a href="/A265968/b265968.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..3..1....3..3..2....4..0..2....1..1..2....3..4..2....3..0..1....0..3..1
%e ..1..3..4....1..1..0....1..3..2....0..4..4....0..0..2....3..4..1....0..4..4
%e ..1..0..4....4..4..0....1..3..0....0..3..1....1..1..3....1..4..3....2..1..3
%e ..4..0..1....0..3..3....4..4..1....2..3..0....3..4..0....0..0..3....2..1..3
%Y Cf. A265973.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 19 2015
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