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

generates a code of length 65 over Z16 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+13x^64+220x^65+14x^66+2x^72+4x^73+2x^74

The gray image is a code over GF(2) with n=520, k=8 and d=256.
This code was found by Heurico 1.16 in 0.195 seconds.