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

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

Homogenous weight enumerator: w(x)=1x^0+56x^60+208x^61+71x^62+832x^63+47x^64+576x^65+16x^66+24x^68+176x^69+40x^70+1x^126

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 0.275 seconds.