The generator matrix

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

generates a code of length 60 over Z16 who´s minimum homogenous weight is 56.

Homogenous weight enumerator: w(x)=1x^0+210x^56+608x^57+514x^58+628x^59+413x^60+652x^61+332x^62+336x^63+187x^64+108x^65+44x^66+36x^67+20x^68+4x^70+1x^76+2x^78

The gray image is a code over GF(2) with n=480, k=12 and d=224.
This code was found by Heurico 1.16 in 0.325 seconds.