The generator matrix

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

generates a code of length 21 over Z9 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+280x^30+540x^31+648x^32+1734x^33+3120x^34+2142x^35+5164x^36+9186x^37+6174x^38+11906x^39+20760x^40+12204x^41+18588x^42+25194x^43+11844x^44+15088x^45+15816x^46+5382x^47+5414x^48+3756x^49+972x^50+846x^51+360x^52+24x^54+4x^57

The gray image is a code over GF(3) with n=63, k=11 and d=30.
This code was found by Heurico 1.13 in 32 seconds.