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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+186x^48+378x^50+24x^51+639x^52+176x^53+778x^54+496x^55+1164x^56+640x^57+1090x^58+536x^59+843x^60+144x^61+486x^62+32x^63+271x^64+180x^66+93x^68+32x^70+2x^72+1x^92

The gray image is a code over GF(2) with n=228, k=13 and d=96.
This code was found by Heurico 1.16 in 3.65 seconds.