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A268048 Number of nX4 0..4 arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order.

%I A268048 #4 Jan 25 2016 10:52:01
%S A268048 12,3183,1650058,829256141,386602239495,168939588471080,
%T A268048 70137880138850634,27947317545815128289,10768364145370007188272,
%U A268048 4034957610865168347501829,1476750375062134346976725823
%N A268048 Number of nX4 0..4 arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order.
%C A268048 Column 4 of A268049.
%H A268048 R. H. Hardin, <a href="/A268048/b268048.txt">Table of n, a(n) for n = 1..17</a>
%e A268048 Some solutions for n=5
%e A268048 ..0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0
%e A268048 ..0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0
%e A268048 ..2..0..0..3....2..0..0..2....1..0..0..2....2..0..0..3....2..0..0..2
%e A268048 ..4..3..0..0....3..1..0..1....3..0..0..1....4..2..0..2....3..4..0..3
%e A268048 ..2..3..0..4....1..0..4..0....4..2..2..4....3..3..0..3....4..2..0..4
%Y A268048 Cf. A268049.
%K A268048 nonn
%O A268048 1,1
%A A268048 _R. H. Hardin_, Jan 25 2016