The generator matrix

 1  0  1  1  1  0  1  1  0  1  1  2  4  1  1  1  1  6  1  1  6  6  1  1  2  1  4  1  1  2  2  1  6  6  4  1  1  1  1  1
 0  1  1  0  1  1  3  0  1  4  1  1  1  7  0  3  3  1  0  6  1  1  7  3  4  1  1  2  0  6  4  5  1  1  2  3  7  7  5  2
 0  0  2  0  0  0  0  6  6  0  0  2  4  2  6  0  6  0  2  4  2  6  4  6  6  2  0  0  6  4  2  6  6  2  0  6  2  6  6  4
 0  0  0  2  0  6  2  6  6  0  2  0  4  6  6  4  4  2  0  2  4  2  6  2  0  2  6  0  0  2  4  0  0  0  2  4  6  4  2  4
 0  0  0  0  2  0  2  6  6  2  0  4  2  6  0  0  2  2  2  2  2  4  0  4  4  2  4  6  6  0  2  2  6  4  2  2  6  0  4  2
 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  0  4  4  0  4  4  0  4  0  4  0  0  4  4  0
 0  0  0  0  0  0  4  0  0  0  4  4  0  0  4  4  0  4  0  4  4  0  0  4  4  4  0  0  4  0  0  4  0  0  0  4  4  4  4  0
 0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  4  4  0  0  4  0  4  0  4  4  4  4  4  0  0  0  4  4  0  4  4  4  4  4
 0  0  0  0  0  0  0  0  4  4  4  4  4  0  0  0  4  0  0  0  4  0  4  4  4  0  0  0  0  4  0  4  4  4  4  4  4  4  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+164x^30+274x^31+522x^32+878x^33+1380x^34+2170x^35+3467x^36+5062x^37+6472x^38+7926x^39+8661x^40+7894x^41+6496x^42+5148x^43+3761x^44+2284x^45+1208x^46+806x^47+445x^48+202x^49+136x^50+58x^51+33x^52+14x^53+12x^54+2x^55+3x^56+2x^57+4x^58+3x^60

The gray image is a code over GF(2) with n=160, k=16 and d=58.
This code was found by Heurico 1.16 in 79.2 seconds.