The generator matrix

 1  0  1  1  1  4  1  1  0  0  1  1  1  1  6  1  1  2  1  1  0  1  4  2  1  1  1  1  1  0  1  1  1  2  1  4  2  6  1  0  1  6  2  2  1  1  1  1
 0  1  1  0  1  1  4  3  1  1  0  7  5  4  1  1  4  1  4  3  1  1  1  1  2  1  4  6  2  1  5  5  2  1  7  1  1  1  1  1  6  1  1  1  3  0  4  6
 0  0  2  0  0  0  0  4  4  4  0  0  4  6  2  6  6  6  2  6  6  6  2  0  6  4  0  6  4  2  0  2  6  0  2  4  4  4  0  6  0  4  0  6  6  6  2  0
 0  0  0  2  0  0  4  0  6  6  6  2  6  6  6  2  0  2  6  4  0  6  4  2  4  6  4  2  6  2  6  2  2  0  4  0  6  0  4  4  2  4  2  2  4  2  6  4
 0  0  0  0  2  6  6  0  6  0  2  4  2  2  4  4  6  2  0  6  6  6  0  0  4  4  2  0  6  2  4  0  6  0  2  4  2  6  4  0  2  0  4  0  0  6  6  4

generates a code of length 48 over Z8 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+184x^42+68x^43+492x^44+212x^45+594x^46+232x^47+658x^48+232x^49+536x^50+212x^51+381x^52+68x^53+124x^54+52x^56+32x^58+14x^60+2x^62+1x^64+1x^68

The gray image is a code over GF(2) with n=192, k=12 and d=84.
This code was found by Heurico 1.16 in 0.613 seconds.