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

generates a code of length 63 over Z16 who´s minimum homogenous weight is 59.

Homogenous weight enumerator: w(x)=1x^0+112x^59+65x^60+212x^61+640x^62+200x^63+570x^64+84x^65+64x^67+3x^68+44x^69+40x^71+12x^73+1x^120

The gray image is a code over GF(2) with n=504, k=11 and d=236.
This code was found by Heurico 1.16 in 50.9 seconds.