The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+88x^30+16x^31+490x^32+192x^33+1103x^34+720x^35+2335x^36+2016x^37+3835x^38+3248x^39+4718x^40+3104x^41+3938x^42+2032x^43+2293x^44+800x^45+1178x^46+128x^47+375x^48+32x^49+95x^50+27x^52+3x^54+1x^76

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 21.6 seconds.