The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 36.

Homogenous weight enumerator: w(x)=1x^0+111x^36+64x^37+108x^38+192x^39+236x^40+256x^41+164x^42+256x^43+196x^44+192x^45+84x^46+64x^47+81x^48+28x^50+11x^52+2x^56+2x^60

The gray image is a code over GF(2) with n=168, k=11 and d=72.
This code was found by Heurico 1.16 in 0.122 seconds.