The generator matrix

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

generates a code of length 81 over Z9 who´s minimum homogenous weight is 158.

Homogenous weight enumerator: w(x)=1x^0+180x^158+54x^159+144x^161+132x^162+54x^165+144x^167+18x^170+2x^243

The gray image is a code over GF(3) with n=243, k=6 and d=158.
This code was found by Heurico 1.16 in 0.0758 seconds.