The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+98x^42+224x^43+396x^44+396x^45+447x^46+350x^47+465x^48+300x^49+460x^50+258x^51+281x^52+172x^53+103x^54+58x^55+40x^56+28x^57+12x^58+6x^59+1x^60

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 0.432 seconds.