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

generates a code of length 48 over Z8 who´s minimum homogenous weight is 38.

Homogenous weight enumerator: w(x)=1x^0+35x^38+60x^39+156x^40+194x^41+242x^42+424x^43+394x^44+610x^45+763x^46+768x^47+943x^48+786x^49+749x^50+622x^51+417x^52+370x^53+197x^54+154x^55+114x^56+84x^57+56x^58+18x^59+20x^60+4x^61+5x^62+2x^63+2x^64+1x^66+1x^68

The gray image is a code over GF(2) with n=192, k=13 and d=76.
This code was found by Heurico 1.16 in 2.82 seconds.