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

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

Homogenous weight enumerator: w(x)=1x^0+42x^38+70x^40+310x^42+48x^44+22x^46+8x^48+10x^50+1x^80

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 6.48 seconds.