The generator matrix

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

generates a code of length 64 over Z8 who´s minimum homogenous weight is 65.

Homogenous weight enumerator: w(x)=1x^0+20x^65+2x^66+4x^67+3x^68+1x^70+1x^74

The gray image is a code over GF(2) with n=256, k=5 and d=130.
This code was found by Heurico 1.16 in 0.0876 seconds.