%I
%S 1,126,414,7396,253472,15303976,1582675968,276165720476
%N Number of nX(n+3) arrays of permutations of n+3 copies of 0..n1 with every element equal to or 1 greater than any north or west neighbors modulo n and the upper left element equal to 0.
%C Superdiagonal 3 of A268115.
%e Some solutions for n=4
%e ..0..0..0..1..2..2..3....0..0..0..1..1..2..3....0..1..1..2..2..2..3
%e ..0..1..1..1..2..3..3....0..0..1..1..1..2..3....0..1..2..3..3..3..0
%e ..0..1..2..2..2..3..0....0..1..2..2..2..3..3....1..1..2..3..3..0..0
%e ..1..2..3..3..3..0..1....0..1..2..2..3..3..3....1..2..2..3..0..0..1
%Y Cf. A268115.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 26 2016
