The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 32.

Homogenous weight enumerator: w(x)=1x^0+330x^32+806x^34+1322x^36+160x^37+2294x^38+1056x^39+4490x^40+2880x^41+5908x^42+2880x^43+4754x^44+1056x^45+2340x^46+160x^47+1331x^48+614x^50+291x^52+70x^54+24x^56+1x^68

The gray image is a code over GF(2) with n=168, k=15 and d=64.
This code was found by Heurico 1.16 in 68.8 seconds.