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%I #5 Aug 12 2016 06:53:58
%S 120,22320,4857120,1286876160,378296480400,119417031121560,
%T 39653227389625800,13674544263132249120
%N Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal or vertical neighbors.
%C Row 5 of A264954.
%e Some solutions for n=2
%e ..3..0....3..4....3..1....2..3....1..2....0..2....0..1....1..2....4..1....4..2
%e ..2..1....0..2....0..4....1..0....3..0....3..1....4..2....0..3....3..4....3..1
%e ..4..0....3..1....2..3....2..4....1..4....1..4....1..0....4..1....2..1....0..4
%e ..3..2....2..0....4..0....1..3....2..0....4..2....3..4....0..4....3..0....2..3
%e ..1..4....1..4....1..2....0..4....4..3....3..0....2..3....3..2....0..2....0..1
%Y Cf. A264954.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 29 2015