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

generates a code of length 65 over Z16 who´s minimum homogenous weight is 59.

Homogenous weight enumerator: w(x)=1x^0+230x^59+287x^60+546x^61+591x^62+1020x^63+1005x^64+1172x^65+892x^66+938x^67+529x^68+404x^69+162x^70+184x^71+79x^72+78x^73+14x^74+28x^75+16x^76+6x^77+3x^78+2x^80+2x^81+2x^82+1x^96

The gray image is a code over GF(2) with n=520, k=13 and d=236.
This code was found by Heurico 1.16 in 30.5 seconds.