%I #3 Jan 26 2016 17:19:16
%S 1,35,114,1256,23522,726627,36708187,3039274773
%N Number of nX(n+2) arrays of permutations of n+2 copies of 0..n-1 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 2 of A268115.
%e Some solutions for n=5
%e ..0..0..1..2..2..3..4....0..0..1..1..2..2..3....0..1..2..2..3..3..4
%e ..1..1..2..2..3..4..0....1..1..2..2..3..3..4....1..2..3..3..4..4..0
%e ..1..2..3..3..4..0..0....2..2..2..3..4..4..0....2..2..3..4..0..0..1
%e ..2..3..3..4..4..0..1....3..3..3..4..0..0..0....2..3..4..4..0..1..1
%e ..2..3..4..4..0..1..1....4..4..4..0..1..1..1....2..3..4..0..0..1..1
%Y Cf. A268115.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 26 2016