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%I #6 Aug 12 2016 06:54:00
%S 1,0,0,1,5,23,79,178,336,835,3128,14040,59621,222502,738006,2300988,
%T 7269138,24626806,89676159,336858214,1251319303,4507801679,
%U 15792191315,54688767852,190846159644,679049839287,2461345925310,8998778045264
%N Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo 4 and the upper left element equal to 0.
%C Row 4 of A267197.
%H R. H. Hardin, <a href="/A267202/b267202.txt">Table of n, a(n) for n = 1..39</a>
%e Some solutions for n=8
%e ..0..1..2..2..3..3..0..0....0..1..2..2..3..3..0..0....0..1..1..2..2..3..3..0
%e ..1..1..2..2..3..3..0..0....0..1..2..2..3..3..0..0....1..1..2..2..3..3..0..0
%e ..1..1..2..2..3..3..0..0....1..1..2..2..3..3..0..1....1..2..2..3..3..0..0..1
%e ..1..1..2..2..3..3..0..1....1..1..2..2..3..3..0..1....2..2..3..3..0..0..1..1
%Y Cf. A267197.
%K nonn
%O 1,5
%A _R. H. Hardin_, Jan 11 2016
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