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%I #6 Aug 12 2016 06:53:59
%S 24,984,56496,3965392,307543008,25346247472,2177808505472,
%T 192906735661528,17489278188423296,1614969746814390896,
%U 151358790056680049792,14360889227707270019712,1376684210617781240317184
%N Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any antidiagonal neighbor equal to 4-1.
%C Row 4 of A265870.
%H R. H. Hardin, <a href="/A265872/b265872.txt">Table of n, a(n) for n = 1..33</a>
%e Some solutions for n=3
%e ..1..0..3....2..3..0....1..2..2....1..0..2....3..2..2....2..0..3....3..1..2
%e ..2..3..2....2..1..0....0..0..2....1..2..3....2..0..3....0..2..1....1..0..2
%e ..2..0..3....3..0..1....0..3..1....0..2..3....0..1..1....3..0..1....0..0..3
%e ..1..1..0....2..3..1....1..3..3....0..3..1....1..0..3....1..3..2....2..3..1
%Y Cf. A265870.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2015
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