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%I #3 Jan 13 2016 09:14:07
%S 1,10,11,45,264,2192,25661,418273,9498724
%N Number of nX(n+1) arrays of permutations of n+1 copies of 0..n-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo n and the upper left element equal to 0.
%C Superdiagonal 1 of A267338.
%e Some solutions for n=4
%e ..0..1..2..3..0....0..1..2..2..3....0..1..2..2..3....0..1..2..3..0
%e ..1..2..2..3..0....0..1..2..3..3....0..1..2..3..0....1..2..3..0..1
%e ..1..2..3..0..1....1..1..2..3..0....1..2..3..3..0....2..3..0..1..2
%e ..2..3..3..0..1....1..2..3..0..0....1..2..3..0..1....3..0..1..2..3
%Y Cf. A267338.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 13 2016
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