The generator matrix

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

generates a code of length 38 over Z8 who´s minimum homogenous weight is 28.

Homogenous weight enumerator: w(x)=1x^0+38x^28+166x^30+8x^31+370x^32+88x^33+667x^34+328x^35+1159x^36+600x^37+1352x^38+600x^39+1152x^40+328x^41+730x^42+88x^43+293x^44+8x^45+138x^46+51x^48+19x^50+5x^52+2x^56+1x^60

The gray image is a code over GF(2) with n=152, k=13 and d=56.
This code was found by Heurico 1.16 in 1.95 seconds.