The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+64x^59+294x^60+506x^61+655x^62+1022x^63+1120x^64+946x^65+1089x^66+1008x^67+672x^68+484x^69+235x^70+42x^71+10x^72+10x^73+1x^74+4x^75+10x^76+6x^77+2x^78+4x^79+5x^80+2x^90

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 1.05 seconds.