The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+64x^30+14x^31+152x^32+70x^33+242x^34+274x^35+674x^36+866x^37+2099x^38+1980x^39+4295x^40+2988x^41+5411x^42+2900x^43+4294x^44+1908x^45+2140x^46+918x^47+683x^48+302x^49+229x^50+58x^51+118x^52+10x^53+48x^54+21x^56+5x^58+2x^60+1x^66+1x^70

The gray image is a code over GF(2) with n=168, k=15 and d=60.
This code was found by Heurico 1.16 in 22.2 seconds.