The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+60x^33+60x^34+140x^36+48x^37+1620x^38+94x^39+90x^42+48x^43+18x^45+6x^46+2x^57

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 0.00865 seconds.