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

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

Homogenous weight enumerator: w(x)=1x^0+180x^40+8x^41+136x^42+68x^43+460x^44+180x^45+478x^46+260x^47+613x^48+260x^49+468x^50+172x^51+401x^52+60x^53+160x^54+12x^55+114x^56+4x^57+36x^58+18x^60+2x^62+4x^64+1x^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 0.756 seconds.