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%I #4 Dec 19 2015 09:45:51
%S 1252,38096,89776,230784,631264,1820904,5120120,14529352,40869008,
%T 116148576,330124104,935364856,2641623616,7497789512,21321031376,
%U 60505118208,171246024504,485965902816,1381610459280,3923852199568
%N Number of nX5 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.
%C Column 5 of A265973.
%H R. H. Hardin, <a href="/A265970/b265970.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..1..4..4..3..0....2..0..4..4..3....0..4..3..0..1....0..1..4..3..3
%e ..3..0..0..3..1....3..0..1..1..0....3..1..1..4..3....0..3..4..0..1
%e ..3..1..1..4..4....1..4..3..3..0....3..0..2..2..3....2..3..1..0..4
%Y Cf. A265973.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 19 2015
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