The generator matrix

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

generates a code of length 29 over Z9 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+90x^48+132x^51+84x^54+486x^56+90x^57+972x^59+84x^60+82x^63+80x^66+54x^69+22x^72+8x^75+2x^84

The gray image is a code over GF(3) with n=87, k=7 and d=48.
This code was found by Heurico 1.16 in 0.176 seconds.