The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+133x^50+340x^51+508x^52+616x^53+781x^54+672x^55+875x^56+694x^57+726x^58+648x^59+652x^60+480x^61+434x^62+274x^63+175x^64+94x^65+45x^66+16x^67+12x^68+4x^69+9x^70+2x^71+1x^72

The gray image is a code over GF(2) with n=228, k=13 and d=100.
This code was found by Heurico 1.11 in 1.05 seconds.