The generator matrix

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

generates a code of length 40 over Z8 who´s minimum homogenous weight is 32.

Homogenous weight enumerator: w(x)=1x^0+39x^32+4x^34+92x^36+60x^38+649x^40+60x^42+70x^44+4x^46+30x^48+13x^52+1x^56+1x^68

The gray image is a code over GF(2) with n=160, k=10 and d=64.
This code was found by Heurico 1.16 in 0.0593 seconds.