8 MOLS(36) can be constructed from a (36,9,1) difference matrix over G = Z2 X Z2 X Z3 X Z3. Denote the element of G by 18a+9b+3c+d Then 0 3 6 9 12 15 18 21 24 27 30 33 1 4 7 10 13 16 19 22 25 28 31 34 2 5 8 11 14 17 20 23 26 29 32 35 0 6 3 32 29 35 7 4 1 5 2 8 15 12 9 11 17 14 31 28 34 13 10 16 30 27 33 26 23 20 19 25 22 21 18 24 0 1 2 3 4 5 21 22 23 9 10 11 27 28 29 24 25 26 18 19 20 15 16 17 33 34 35 6 7 8 30 31 32 12 13 14 0 2 1 15 17 16 3 5 4 30 32 31 24 26 25 21 23 22 9 11 10 6 8 7 12 14 13 27 29 28 33 35 34 18 20 19 0 4 8 12 16 11 15 10 14 33 28 32 29 30 34 5 6 1 35 27 31 20 21 25 19 23 24 22 26 18 7 2 3 13 17 9 0 8 4 21 20 25 28 33 32 23 19 24 26 22 18 7 3 2 10 15 14 9 17 13 35 31 27 12 11 16 5 1 6 34 30 29 0 5 7 27 32 34 12 17 10 25 18 23 11 13 15 26 19 21 8 1 3 30 35 28 22 24 20 16 9 14 31 33 29 2 4 6 0 7 5 18 25 23 30 28 35 14 9 16 34 32 27 13 11 15 4 2 6 24 22 20 17 12 10 29 33 31 26 21 19 1 8 3 and a row of all zeroes give a (36,9,1) difference matrix.