The generator matrix

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

generates a code of length 24 over Z9 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+108x^42+276x^43+190x^45+450x^46+168x^48+342x^49+142x^51+264x^52+88x^54+126x^55+28x^57+2x^60+2x^66

The gray image is a code over GF(3) with n=72, k=7 and d=42.
This code was found by Heurico 1.16 in 0.0295 seconds.