The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+180x^50+272x^51+600x^52+500x^53+762x^54+684x^55+893x^56+684x^57+741x^58+740x^59+701x^60+428x^61+407x^62+212x^63+204x^64+52x^65+79x^66+12x^67+27x^68+7x^70+6x^72

The gray image is a code over GF(2) with n=228, k=13 and d=100.
This code was found by Heurico 1.16 in 2.09 seconds.