The generator matrix

 1  0  1  1  1  6  1  1  0  1  1  6  0  1  1  6  1  1  1  0  4  1  1  6  1  1  6  1  1  1  0  1  1  1  6  0  1  6  1  1  1  2  1  1  6  0  1  0  1  1  1  1  2  1  1  1  1
 0  1  3  6  1  1  0  3  1  6  5  1  1  0  5  1  6  3  2  1  1  3  0  1  5  4  1  6  5  3  1  0  6  3  1  1  3  1  6  5  3  1  0  5  1  1  6  1  5  7  0  3  1  0  5  7  5
 0  0  4  0  0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  4  4  4  0  4  4  0  4  0  0  4  4  0  4  0  4  4  4  4  0  0  4  0  4  4  0  0  4  4  0  0  0  4  4  4  0  4  0
 0  0  0  4  0  0  0  0  0  0  0  0  0  4  0  4  0  4  4  4  4  0  4  0  4  4  0  4  0  4  4  0  4  0  0  0  4  0  0  4  0  0  4  4  0  0  0  4  4  0  4  0  4  4  4  0  0
 0  0  0  0  4  0  0  0  0  0  0  4  4  0  4  4  4  4  4  0  4  4  0  0  0  0  4  4  4  4  0  4  0  0  0  0  0  4  4  0  0  0  0  4  0  4  0  4  4  4  0  4  4  4  4  4  4
 0  0  0  0  0  4  0  0  0  0  4  4  4  0  4  0  0  4  0  4  0  0  4  4  0  4  0  0  0  4  4  4  0  0  0  4  4  0  0  0  4  0  4  0  4  4  4  4  4  4  4  4  4  0  4  4  0
 0  0  0  0  0  0  4  0  0  4  4  0  0  4  4  0  0  4  4  4  4  4  0  0  0  4  4  0  4  0  0  4  4  0  0  4  0  0  0  4  4  4  0  4  0  0  4  4  4  4  0  0  0  4  0  0  4
 0  0  0  0  0  0  0  4  0  4  0  0  0  0  0  0  4  4  0  0  0  4  4  4  4  4  4  0  0  4  4  4  0  4  0  0  0  0  4  4  4  0  4  4  4  4  0  4  0  0  0  4  0  0  4  0  0
 0  0  0  0  0  0  0  0  4  0  4  4  0  0  4  4  4  4  4  0  0  0  0  4  4  0  4  0  0  0  4  0  4  4  4  0  4  4  0  4  0  0  0  0  4  0  4  4  0  4  4  0  4  4  4  0  0

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

Homogenous weight enumerator: w(x)=1x^0+127x^48+20x^49+184x^50+160x^51+530x^52+368x^53+700x^54+608x^55+1080x^56+760x^57+972x^58+608x^59+770x^60+368x^61+404x^62+160x^63+239x^64+20x^65+44x^66+34x^68+24x^72+10x^76+1x^80

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 2.78 seconds.