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%I #4 Aug 12 2016 07:05:18
%S 1,0,2,126,67735,45049091,53041447974,95667493395637
%N Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its west, northeast or northwest neighbor modulo n and the upper left element equal to 0.
%C Column 3 of A266994.
%e Some solutions for n=5
%e ..0..3..3....0..3..1....0..2..1....0..4..4....0..3..3....0..4..3....0..2..1
%e ..1..0..3....1..4..2....0..4..1....1..4..1....0..2..0....4..3..2....2..4..1
%e ..2..1..0....3..0..3....2..4..2....3..3..2....1..4..4....2..2..1....3..0..3
%e ..1..4..4....0..2..2....3..0..4....3..2..1....1..4..2....1..1..0....4..2..4
%e ..2..4..2....4..4..1....3..1..3....2..0..0....2..1..3....4..3..0....0..3..1
%Y Cf. A266994.
%K nonn
%O 1,3
%A _R. H. Hardin_, Jan 08 2016
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