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  0  1  1  2  0  2  1  1  2  0  1  2  1  4  1  1  1  1  2  1  2  0  0  0  1  1  1
 0  2  0  2  0  0  2  6  0  4  6  2  0  2  2  4  4  6  0  2  6  2  0  6  2  4  2  2  0  6  6  6  0  0  2  6  4  2  0  2  0  6  4  4  6  4  2  2  0  2  0
 0  0  2  2  0  6  2  0  4  2  0  2  0  6  4  2  2  4  0  6  6  4  2  0  0  0  2  6  2  4  6  2  6  2  2  0  6  6  4  2  4  6  2  4  4  2  0  6  2  4  0
 0  0  0  4  0  0  0  0  4  4  4  4  4  0  4  0  0  0  0  4  0  0  4  4  4  4  0  0  0  4  0  0  4  4  0  0  4  4  4  4  4  0  4  4  0  0  0  0  0  0  0
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  0  0  0  0  4  4  4  4  4  0  0  4  4  4  0  0  0  0  0  4  0  4  4  4  0  4  0  4  4  4  0  0  4  4  0  0
 0  0  0  0  0  4  0  0  0  4  0  0  4  4  4  4  4  4  4  0  4  0  0  0  0  0  0  4  4  4  4  0  0  0  0  4  4  0  0  4  0  4  0  4  4  0  0  0  4  4  0
 0  0  0  0  0  0  4  0  4  4  4  4  4  0  4  4  4  4  4  4  4  0  0  0  0  4  4  0  4  0  0  0  4  0  4  0  0  4  4  4  0  4  0  0  4  0  4  4  4  4  0
 0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  0  4  4  0  0  4  0  0  0  4  4  4  0  4  4  4  4  4  4  0  0  4  4  4  0  0  0  4  0  4  0  4  0  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+39x^42+52x^43+86x^44+142x^45+191x^46+244x^47+321x^48+368x^49+409x^50+450x^51+429x^52+394x^53+274x^54+218x^55+134x^56+102x^57+90x^58+50x^59+44x^60+16x^61+15x^62+10x^63+8x^64+2x^65+5x^66+1x^68+1x^74

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 0.774 seconds.