%I #4 Jan 27 2016 19:35:58
%S 15,900,44517,2059071,88808673,3660830427,145301219913,5600451934263,
%T 210693318976809,7769692483541913,281740543748278353,
%U 10071425144186095647,355636339335520541583,12425488243555670885277
%N Number of nX3 0..3 arrays with every repeated value in every row and column one larger mod 4 than the previous repeated value, and upper left element zero.
%C Column 3 of A268169.
%H R. H. Hardin, <a href="/A268166/b268166.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..0..3....0..2..0....0..2..0....0..3..0....0..0..2....0..1..2....0..0..2
%e ..1..3..1....2..3..2....1..2..3....1..0..1....0..2..0....2..0..3....1..1..2
%e ..2..1..0....1..0..2....1..0..1....2..1..3....1..3..1....0..2..2....3..0..1
%Y Cf. A268169.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 27 2016
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