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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 38.

Homogenous weight enumerator: w(x)=1x^0+35x^38+28x^39+20x^40+104x^41+147x^42+96x^43+20x^44+24x^45+25x^46+4x^47+7x^48+1x^82

The gray image is a code over GF(2) with n=168, k=9 and d=76.
This code was found by Heurico 1.16 in 0.0326 seconds.