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

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

Homogenous weight enumerator: w(x)=1x^0+186x^32+12x^33+430x^34+108x^35+753x^36+316x^37+1080x^38+572x^39+1301x^40+612x^41+1096x^42+324x^43+700x^44+84x^45+336x^46+20x^47+183x^48+66x^50+11x^52+1x^56

The gray image is a code over GF(2) with n=160, k=13 and d=64.
This code was found by Heurico 1.16 in 2.25 seconds.