The generator matrix

 1  0  0  0  1  1  1  1  1  1 2X  1  1  1  3 X+6  X  1  1  1
 0  1  0  0 2X+3  3  6 X+3  4 2X+1  1 X+4  5 X+5  1  1  1  7 2X+4 2X+3
 0  0  1  0 2X+4 2X+3 2X+1 X+8 X+4 2X+8  8 X+6 X+5 X+3 X+3  4  5 X+5 X+1  6
 0  0  0  1 2X+2 2X+4 X+1  6 2X+3 X+5 X+7  1 X+8 X+3 X+2  3 X+5 X+1 2X+5 2X+1

generates a code of length 20 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 32.

Homogenous weight enumerator: w(x)=1x^0+690x^32+1104x^33+4554x^34+8760x^35+19990x^36+23436x^37+64818x^38+68552x^39+99846x^40+119496x^41+69528x^42+32544x^43+14550x^44+3310x^45+180x^47+80x^48+2x^57

The gray image is a code over GF(3) with n=180, k=12 and d=96.
This code was found by Heurico 1.16 in 101 seconds.