The generator matrix

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

generates a code of length 48 over Z8 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+174x^40+8x^41+178x^42+56x^43+400x^44+168x^45+464x^46+280x^47+674x^48+280x^49+468x^50+168x^51+386x^52+56x^53+160x^54+8x^55+114x^56+10x^58+28x^60+13x^64+2x^68

The gray image is a code over GF(2) with n=192, k=12 and d=80.
This code was found by Heurico 1.16 in 81.8 seconds.