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

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 0.333 seconds.