The generator matrix

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

generates a code of length 60 over Z16 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+339x^52+1500x^53+3668x^54+7850x^55+13056x^56+21908x^57+27755x^58+36514x^59+35765x^60+37928x^61+28164x^62+22386x^63+12833x^64+6992x^65+3135x^66+1396x^67+620x^68+196x^69+90x^70+24x^71+8x^72+4x^73+4x^74+6x^75+2x^76

The gray image is a code over GF(2) with n=480, k=18 and d=208.
This code was found by Heurico 1.16 in 568 seconds.