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Number of nX(n+4) arrays of permutations of n+4 copies of 0..n-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo n and the upper left element equal to 0.
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%I #3 Jan 13 2016 20:10:50

%S 1,462,278,1975,20470,296985,5950744,165102597

%N Number of nX(n+4) arrays of permutations of n+4 copies of 0..n-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo n and the upper left element equal to 0.

%C Superdiagonal 4 of A267392.

%e Some solutions for n=4

%e ..0..0..1..1..2..2..2..3....0..0..1..1..2..2..3..3....0..0..0..1..1..1..2..3

%e ..0..1..1..2..2..3..3..0....1..1..1..2..2..3..3..0....0..1..1..2..2..2..3..0

%e ..1..2..2..3..3..0..0..0....1..2..2..3..3..3..0..0....1..2..2..2..3..3..0..0

%e ..2..3..3..3..0..1..1..1....2..2..3..0..0..0..1..1....2..3..3..3..3..0..1..1

%Y Cf. A267392.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 13 2016