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

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

Homogenous weight enumerator: w(x)=1x^0+13x^40+74x^41+130x^42+182x^43+265x^44+320x^45+462x^46+536x^47+767x^48+916x^49+894x^50+964x^51+742x^52+576x^53+426x^54+290x^55+199x^56+146x^57+118x^58+70x^59+57x^60+16x^61+15x^62+4x^63+4x^64+2x^66+2x^71+1x^78

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 2.98 seconds.