The generator matrix

 1  0  1  1  1  6  1  1  0  1  1  6  1  1  0  1  1  6  1  1  1  1  0  1  1  1  1  6  0  1  1  6  1  0  1  0  1  1
 0  1  3  6  1  1  0  3  1  6  5  1  0  5  1  6  3  1  0  6  3  5  1  0  3  6  5  1  1  3  6  1  3  1  0  1  0  0
 0  0  4  0  0  0  0  0  0  0  0  4  0  0  0  0  4  4  0  0  4  4  4  0  4  4  4  0  4  0  4  0  4  4  4  4  0  0
 0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  4  0  0  4  4  0  4  4  4  0  4  4  0  4  4  0  4  0  0
 0  0  0  0  4  0  0  0  0  4  0  0  4  4  0  4  4  0  4  0  4  0  0  4  4  0  0  0  4  0  4  4  4  4  4  0  0  0
 0  0  0  0  0  4  0  0  0  4  0  0  4  0  4  0  0  4  4  4  4  4  0  0  0  4  4  4  4  0  0  4  0  4  4  0  0  0
 0  0  0  0  0  0  4  0  0  0  4  0  4  4  0  0  4  4  4  4  0  4  0  0  4  4  0  0  0  0  0  4  4  0  0  4  0  0
 0  0  0  0  0  0  0  4  0  4  4  4  4  0  0  4  4  4  4  0  4  0  4  0  0  0  4  0  0  4  0  4  4  4  0  0  0  0
 0  0  0  0  0  0  0  0  4  4  4  4  4  4  4  4  0  4  0  4  0  0  0  0  4  0  0  0  0  4  4  4  0  4  4  0  0  0

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

Homogenous weight enumerator: w(x)=1x^0+54x^28+60x^30+16x^31+307x^32+176x^33+464x^34+656x^35+803x^36+1200x^37+744x^38+1200x^39+786x^40+656x^41+464x^42+176x^43+284x^44+16x^45+60x^46+57x^48+11x^52+1x^64

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 1.34 seconds.