The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+51x^48+160x^49+448x^50+626x^51+885x^52+1060x^53+1111x^54+1456x^55+1535x^56+1596x^57+1677x^58+1620x^59+1245x^60+936x^61+800x^62+468x^63+305x^64+188x^65+78x^66+50x^67+30x^68+28x^69+13x^70+4x^71+12x^72+1x^74

The gray image is a code over GF(2) with n=228, k=14 and d=96.
This code was found by Heurico 1.16 in 8.22 seconds.