The generator matrix

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

generates a code of length 19 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+28x^30+54x^31+66x^32+106x^33+84x^34+78x^35+840x^36+114x^37+3096x^38+1516x^39+126x^40+114x^41+136x^42+96x^43+48x^44+30x^45+12x^46+4x^48+10x^51+2x^54

The gray image is a code over GF(3) with n=171, k=8 and d=90.
This code was found by Heurico 1.16 in 0.054 seconds.