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  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  2  0  2  0  0  2  2  4  6  4  6 12 14 12 14 12 14  8 10 12  6  8 10  8 10  4  6  4 14  8 10  0  2  4  6  8 10 12 14  4 14  0 10 12  6  8  2  8 10 12  2  0  4 14 12  4  8  0  6  6 14  2 10
 0  0  2  2 12  6 14  4  4  6 10  8 14 10  8 12 12 14  8 10  2  4 14  8  4  6  0  2  6  0 10 12  8 10 12 14  0  2  4  6  2  4 14  0 10 12  6  8 12 14  0  6  4  8  2  6 14  2 10 10  0  8 12  4

generates a code of length 64 over Z16 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+1022x^64+1x^128

The gray image is a code over GF(2) with n=512, k=10 and d=256.
This code was found by Heurico 1.16 in 0.186 seconds.