The generator matrix 1 1 1 1 1 1 1 1 1 1 1 1 1 0 X 0 0 0 0 0 0 0 0 X X 0 0 0 X 0 0 0 0 0 0 X 2X 2X 0 0 0 0 X 0 0 0 0 0 2X 2X 2X 0 0 0 0 0 X 0 0 0 0 2X 2X X 0 0 0 0 0 0 X 0 0 0 2X 2X 0 0 0 0 0 0 0 0 X 0 0 2X 0 X 0 0 0 0 0 0 0 0 X 0 2X 0 2X 0 0 0 0 0 0 0 0 0 X X 2X X 0 generates a code of length 13 over Z3[X]/(X^2) who´s minimum homogenous weight is 9. Homogenous weight enumerator: w(x)=1x^0+60x^9+236x^12+612x^15+1452x^18+2712x^21+3798x^24+39366x^26+4094x^27+3534x^30+2232x^33+792x^36+160x^39 The gray image is a linear code over GF(3) with n=39, k=10 and d=9. This code was found by Heurico 1.16 in 1.31 seconds.