The generator matrix

 1  1  1  1  1  1  1  1
 0  3  0  0  0  3  0  3
 0  0  3  0  0  6  3  6
 0  0  0  3  0  6  3  3
 0  0  0  0  3  3  3  3

generates a code of length 8 over Z9 who´s minimum homogenous weight is 9.

Homogenous weight enumerator: w(x)=1x^0+20x^9+46x^12+64x^15+486x^16+60x^18+44x^21+8x^24

The gray image is a code over GF(3) with n=24, k=6 and d=9.
This code was found by Heurico 1.16 in 0.000444 seconds.