The generator matrix

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

generates a code of length 15 over Z9 who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+186x^24+452x^27+828x^30+630x^33+78x^36+12x^42

The gray image is a code over GF(3) with n=45, k=7 and d=24.
This code was found by Heurico 1.16 in 2.72 seconds.