The generator matrix

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

generates a code of length 41 over Z8 who´s minimum homogenous weight is 28.

Homogenous weight enumerator: w(x)=1x^0+193x^28+68x^30+710x^32+32x^33+642x^34+256x^35+2242x^36+896x^37+3162x^38+1792x^39+5472x^40+2240x^41+4532x^42+1792x^43+4098x^44+896x^45+1592x^46+256x^47+1218x^48+32x^49+234x^50+330x^52+10x^54+52x^56+17x^60+3x^64

The gray image is a code over GF(2) with n=164, k=15 and d=56.
This code was found by Heurico 1.16 in 29.9 seconds.