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%I #4 Aug 12 2016 07:05:18
%S 1,0,2,95,27315,18101569,20154412479,35620013177528
%N Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its north, west or northwest neighbor modulo n and the upper left element equal to 0.
%C Column 3 of A266832.
%e Some solutions for n=5
%e ..0..4..3....0..0..2....0..0..2....0..3..3....0..2..4....0..0..2....0..4..2
%e ..3..2..2....4..4..2....2..0..4....3..0..2....4..4..1....4..3..0....4..2..1
%e ..1..0..0....3..2..4....1..4..2....2..2..4....1..3..3....4..2..2....4..1..0
%e ..1..4..4....3..1..1....1..3..1....1..1..4....1..0..2....1..4..1....3..3..3
%e ..1..3..2....1..0..3....4..3..3....0..4..1....3..0..2....1..3..3....1..0..2
%Y Cf. A266832.
%K nonn
%O 1,3
%A _R. H. Hardin_, Jan 04 2016
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