The generator matrix

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

generates a code of length 40 over Z8 who´s minimum homogenous weight is 29.

Homogenous weight enumerator: w(x)=1x^0+48x^29+136x^30+256x^31+373x^32+538x^33+721x^34+986x^35+1538x^36+2368x^37+3228x^38+3924x^39+4298x^40+4014x^41+3334x^42+2490x^43+1649x^44+1018x^45+640x^46+462x^47+294x^48+192x^49+125x^50+68x^51+36x^52+14x^53+4x^54+6x^55+2x^56+4x^58+1x^60

The gray image is a code over GF(2) with n=160, k=15 and d=58.
This code was found by Heurico 1.16 in 29.8 seconds.