The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+86x^32+154x^33+249x^34+566x^35+773x^36+1298x^37+1753x^38+2460x^39+3211x^40+3616x^41+4178x^42+3752x^43+3324x^44+2608x^45+1754x^46+1284x^47+743x^48+502x^49+213x^50+130x^51+45x^52+14x^53+45x^54+6x^56+2x^60+1x^72

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 23.4 seconds.