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

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

Homogenous weight enumerator: w(x)=1x^0+81x^56+120x^57+106x^58+872x^59+54x^60+544x^61+17x^62+40x^63+56x^64+88x^65+68x^66+1x^118

The gray image is a code over GF(2) with n=480, k=11 and d=224.
This code was found by Heurico 1.16 in 0.241 seconds.