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%I #6 Aug 12 2016 06:54:00
%S 1,1,2,12,45,135,388,1220,5401,27146,125333,515897,2010472,8064508,
%T 34936670,159444254,725890833,3205348045,13816812300,59601118346,
%U 262631332138,1183293213009,5373170070242,24253891624959,108483481246313
%N Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo 4 and the upper left element equal to 0.
%C Row 4 of A267338.
%H R. H. Hardin, <a href="/A267344/b267344.txt">Table of n, a(n) for n = 1..37</a>
%e Some solutions for n=5
%e ..0..1..1..2..3....0..1..2..3..0....0..1..1..2..3....0..1..1..2..3
%e ..0..1..2..2..3....1..2..2..3..0....0..1..2..3..3....0..1..2..2..3
%e ..0..1..2..3..3....1..2..3..3..0....0..1..2..3..0....0..1..2..3..0
%e ..0..1..2..3..0....1..2..3..0..1....1..2..2..3..0....1..2..3..3..0
%Y Cf. A267338.
%K nonn
%O 1,3
%A _R. H. Hardin_, Jan 13 2016
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