The generator matrix

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

generates a code of length 23 over Z9 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+206x^42+224x^45+162x^48+116x^51+16x^54+2x^60+2x^63

The gray image is a code over GF(3) with n=69, k=6 and d=42.
This code was found by Heurico 1.16 in 0.0127 seconds.