The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+43x^32+162x^33+485x^34+1014x^35+1557x^36+2644x^37+3703x^38+5178x^39+6498x^40+7198x^41+8009x^42+7620x^43+6811x^44+5272x^45+3763x^46+2620x^47+1360x^48+830x^49+399x^50+198x^51+111x^52+20x^53+21x^54+10x^55+2x^56+2x^57+3x^58+1x^60+1x^62

The gray image is a code over GF(2) with n=168, k=16 and d=64.
This code was found by Heurico 1.16 in 66.1 seconds.