The generator matrix

 1  0  1  1  1  1  1  0  1  1  1  0  3  0  1  1  1  0  3  0
 0  1  1  8  0  1  8  1  0  8  7  1  1  1  0  7  8  1  1  1
 0  0  6  0  0  0  0  3  3  0  0  6  3  6  6  3  0  6  0  3
 0  0  0  3  0  0  0  6  3  6  6  6  0  0  3  3  6  3  3  0
 0  0  0  0  3  0  3  6  0  3  0  6  0  3  6  0  6  3  6  0
 0  0  0  0  0  6  6  6  0  0  6  0  3  6  3  6  0  0  3  6

generates a code of length 20 over Z9 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+98x^30+54x^32+198x^33+432x^35+328x^36+1296x^38+552x^39+1728x^41+504x^42+864x^44+322x^45+138x^48+36x^51+6x^54+4x^57

The gray image is a code over GF(3) with n=60, k=8 and d=30.
This code was found by Heurico 1.16 in 0.188 seconds.