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%I #4 Jan 28 2016 07:34:46
%S 14,3552,1589578,829256141,423155007379,214576839826736,
%T 107394776331325897,53302504644837846400,26248089243240734040857,
%U 12845211922803675025776670,6252745531707973995264823525
%N Number of nX4 0..4 arrays with every repeated value in every row equal to, and in every column unequal to, the previous repeated value, and new values introduced in row-major sequential order.
%C Column 4 of A268180.
%H R. H. Hardin, <a href="/A268179/b268179.txt">Table of n, a(n) for n = 1..16</a>
%e Some solutions for n=2
%e ..0..1..2..3....0..1..1..0....0..1..1..2....0..1..2..0....0..1..1..0
%e ..1..4..2..4....1..1..0..2....0..3..0..4....3..0..3..1....0..1..1..2
%Y Cf. A268180.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 28 2016