The generator matrix

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

generates a code of length 40 over Z8 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+35x^30+42x^31+211x^32+304x^33+835x^34+986x^35+2076x^36+2300x^37+3605x^38+3512x^39+4826x^40+3548x^41+3845x^42+2344x^43+1912x^44+980x^45+837x^46+270x^47+172x^48+36x^49+53x^50+14x^51+12x^52+3x^54+6x^56+3x^58

The gray image is a code over GF(2) with n=160, k=15 and d=60.
This code was found by Heurico 1.16 in 17.1 seconds.