The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1
 0  X  0  3 2X X+6  X 2X+6 2X  3 X+6 2X 2X+6 X+6 X+3 2X 2X+6 2X+6  0
 0  0  X 2X+6  3 2X+6  X X+6 2X+3  3 X+6 2X+6  3 2X+3 2X+3  6 2X+3 X+3  6

generates a code of length 19 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 33.

Homogenous weight enumerator: w(x)=1x^0+28x^33+48x^34+60x^35+358x^36+60x^37+1020x^38+406x^39+12x^40+48x^41+74x^42+36x^43+6x^44+20x^45+6x^46+2x^48+2x^54

The gray image is a code over GF(3) with n=171, k=7 and d=99.
This code was found by Heurico 1.16 in 0.00743 seconds.