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%I #5 Aug 12 2016 06:53:59
%S 9,1007,203051,51862494,15059945769,4723795604740,1561571407082978,
%T 536705864148249261
%N Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its west or north neighbor modulo 5 and the upper left element equal to 0.
%C Row 5 of A266318.
%e Some solutions for n=2
%e ..0..3....0..3....0..2....0..4....0..2....0..3....0..3....0..2....0..2....0..0
%e ..2..2....3..2....3..0....3..1....2..0....2..1....4..2....4..1....2..4....4..3
%e ..0..4....1..4....3..2....2..0....1..4....0..4....3..2....4..1....4..3....1..3
%e ..4..1....4..2....1..4....2..4....1..3....4..2....1..0....3..3....1..1....4..2
%e ..1..3....1..0....4..1....1..3....4..3....3..1....1..4....2..0....0..3....2..1
%Y Cf. A266318.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 27 2015