The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+136x^30+78x^31+282x^32+688x^33+366x^34+408x^35+1692x^36+942x^37+1218x^38+3286x^39+1488x^40+1284x^41+3448x^42+1092x^43+942x^44+1422x^45+408x^46+240x^47+214x^48+40x^51+8x^54

The gray image is a code over GF(3) with n=60, k=9 and d=30.
This code was found by Heurico 1.16 in 1.09 seconds.