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%I #4 Aug 12 2016 07:05:18
%S 1,0,1,16,3335,2320408,2535597415,4417318594838
%N Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its north, west, northwest or southwest neighbor modulo n and the upper left element equal to 0.
%C Column 3 of A266825.
%e Some solutions for n=4
%e ..0..3..2....0..3..2....0..2..1....0..3..2....0..3..2....0..2..1....0..3..1
%e ..3..2..1....0..3..1....3..2..0....3..2..1....0..3..1....3..2..1....0..2..1
%e ..2..1..0....0..2..1....3..1..0....3..1..0....3..2..1....3..2..0....3..2..1
%e ..1..0..3....3..2..1....2..1..3....2..1..0....2..1..0....3..1..0....3..2..0
%Y Cf. A266825.
%K nonn
%O 1,4
%A _R. H. Hardin_, Jan 04 2016
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