The generator matrix

 1  0  1  1  1  6  1  1 12  1  1 10  1  1  0  1  1  6  1  1 12  1  1 10  1  1  0  1  1  6  1  1 12  1 10  1  1  1  1  1  1  1  1  1  0  6  8 14  1  1  1  1  1  1  1 12  1  4  1 10  1  2  1  1
 0  1  3  6  5  1 15 12  1 10  9  1  0  3  1  6  5  1 12 15  1 10  9  1  0  3  1  6  5  1 12 15  1 10  1  9  5  3 15  9  0  6  8 14  1  1  1  1 11 13  7  1  3  5 12  1  4  1 10  1  2  1 15  0
 0  0  8  0  0  0  0  8  8  8  8  8  0  0  0  0  0  0  8  8  8  8  8  8  0  0  0  8  8  8  0  8  0  8  8  0  0  0  8  8  8  0  8  0  8  0  8  0  8  8  0  8  0  8  0  0  0  0  0  0  0  0  8  8
 0  0  0  8  0  8  8  8  8  0  8  0  8  0  8  0  8  0  0  8  0  8  0  8  0  0  8  8  8  0  8  0  0  0  8  8  0  8  8  0  8  0  0  8  8  0  0  8  0  0  0  8  8  8  0  0  8  8  0  0  8  0  0  8
 0  0  0  0  8  0  8  8  8  8  0  8  0  8  0  0  8  0  8  0  8  8  0  8  8  0  8  0  8  0  8  8  8  0  0  0  0  0  8  8  0  8  0  8  0  8  0  8  8  0  8  8  8  0  0  0  0  0  0  0  8  8  0  8

generates a code of length 64 over Z16 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+96x^60+300x^61+211x^62+308x^63+221x^64+308x^65+202x^66+300x^67+96x^68+1x^72+1x^74+1x^82+1x^86+1x^88

The gray image is a code over GF(2) with n=512, k=11 and d=240.
This code was found by Heurico 1.16 in 0.171 seconds.