The generator matrix

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

generates a code of length 51 over Z8 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+63x^42+42x^43+113x^44+96x^45+174x^46+212x^47+304x^48+428x^49+389x^50+504x^51+402x^52+396x^53+291x^54+236x^55+145x^56+100x^57+69x^58+30x^59+41x^60+4x^61+29x^62+13x^64+7x^66+4x^68+1x^70+1x^72+1x^78

The gray image is a code over GF(2) with n=204, k=12 and d=84.
This code was found by Heurico 1.16 in 2.83 seconds.