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  1  1  1  1  2  1  2  2  1  2  2
 0  4  0  0  0  0  0  4  0  0  0  4  4  0  4  4  0  0  4  0  0  4  4  0  0  4  4  4  0  0  4  4  0  4  0  4  0  0  4
 0  0  4  0  0  0  0  4  0  0  4  4  0  4  4  0  0  4  4  0  0  0  0  4  4  4  0  4  0  4  0  0  4  0  4  4  0  4  4
 0  0  0  4  0  0  0  4  0  4  4  0  0  4  0  4  0  0  4  0  4  4  0  4  0  0  4  4  0  4  4  0  0  0  4  0  4  0  4
 0  0  0  0  4  0  0  4  0  4  0  0  4  4  4  0  4  0  4  4  0  0  4  0  4  0  4  0  4  0  0  4  0  0  4  4  4  0  0
 0  0  0  0  0  4  0  4  4  0  0  0  4  4  0  4  4  0  0  4  4  0  0  0  0  4  4  0  0  4  4  0  0  4  4  4  0  4  0
 0  0  0  0  0  0  4  4  4  0  4  0  0  0  4  4  0  4  0  4  0  0  4  0  4  4  4  0  4  4  0  0  4  4  0  4  4  0  4

generates a code of length 39 over Z8 who´s minimum homogenous weight is 34.

Homogenous weight enumerator: w(x)=1x^0+28x^34+54x^36+54x^38+256x^39+52x^40+38x^42+16x^44+2x^46+3x^48+6x^50+1x^52+1x^68

The gray image is a code over GF(2) with n=156, k=9 and d=68.
This code was found by Heurico 1.16 in 7.3 seconds.