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

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

Homogenous weight enumerator: w(x)=1x^0+134x^42+409x^44+64x^45+584x^46+176x^47+818x^48+512x^49+1178x^50+544x^51+1146x^52+512x^53+799x^54+176x^55+521x^56+64x^57+329x^58+159x^60+45x^62+16x^64+3x^66+1x^68+1x^76

The gray image is a code over GF(2) with n=204, k=13 and d=84.
This code was found by Heurico 1.16 in 3.13 seconds.