The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+48x^42+12x^44+3x^48

The gray image is a code over GF(2) with n=168, k=6 and d=84.
This code was found by Heurico 1.16 in 0.0136 seconds.