The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  0  2  1  1  0  2  0  2  0  1  1  1  1  1  1  2  1  0  1  1  1
 0  2  0  6  0  6  0  6  0  6  4  6  0  6  2  0  4  6  2  6  0  4  2  6  2  6  2  6  6  0  6  4  0  6  4  2  6  0  0
 0  0  4  0  0  0  0  0  0  0  4  0  4  4  4  0  4  0  4  0  0  4  4  0  0  4  0  4  0  4  4  0  0  4  4  0  0  4  0
 0  0  0  4  0  0  0  0  0  0  0  4  0  4  4  0  0  0  0  0  0  0  0  4  4  4  4  4  0  4  0  0  4  4  4  0  4  4  0
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  4  4  0  4  4  4  0  4  4  4  0  4  4  0  0  0  4  0  4  4  4  0  0
 0  0  0  0  0  4  0  0  0  4  0  4  0  0  4  0  0  4  4  0  4  4  4  0  0  4  4  4  0  0  0  4  4  0  0  0  4  0  0
 0  0  0  0  0  0  4  0  0  0  0  0  4  0  0  4  0  0  4  4  4  0  4  4  0  4  4  4  0  4  4  0  4  0  4  0  4  0  4
 0  0  0  0  0  0  0  4  0  4  0  0  0  4  4  4  4  0  4  4  0  0  0  4  4  4  0  0  0  4  4  4  0  4  4  4  4  4  4
 0  0  0  0  0  0  0  0  4  0  4  4  4  4  0  4  0  4  0  0  4  4  4  4  0  4  0  0  0  0  0  0  0  4  4  0  4  0  0

generates a code of length 39 over Z8 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+38x^30+10x^31+109x^32+64x^33+185x^34+120x^35+426x^36+192x^37+774x^38+252x^39+792x^40+192x^41+455x^42+120x^43+156x^44+64x^45+66x^46+10x^47+42x^48+15x^50+10x^52+2x^54+1x^58

The gray image is a code over GF(2) with n=156, k=12 and d=60.
This code was found by Heurico 1.16 in 0.575 seconds.