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

generates a code of length 50 over Z8 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+69x^40+64x^41+104x^42+190x^43+298x^44+380x^45+427x^46+624x^47+760x^48+776x^49+852x^50+812x^51+681x^52+656x^53+499x^54+352x^55+189x^56+152x^57+120x^58+70x^59+44x^60+20x^61+33x^62+5x^64+12x^66+1x^68+1x^70

The gray image is a code over GF(2) with n=200, k=13 and d=80.
This code was found by Heurico 1.16 in 3.18 seconds.