The generator matrix

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

generates a code of length 19 over Z9 who´s minimum homogenous weight is 31.

Homogenous weight enumerator: w(x)=1x^0+228x^31+336x^32+148x^33+546x^34+606x^35+186x^36+708x^37+918x^38+194x^39+960x^40+834x^41+156x^42+408x^43+222x^44+38x^45+66x^46+4x^48+2x^51

The gray image is a code over GF(3) with n=57, k=8 and d=31.
This code was found by Heurico 1.16 in 0.196 seconds.