The generator matrix

 1  0  1  1  1  4  1  0  1  1  1  6  1  1  4  6  1  2  2  4  1
 0  1  1  0  3  1  0  1  9  0  5  1  5  1  2  1 10  8 10 12  0
 0  0  2  0  2  4 14 10  0 14  4 14  2  2  2  2 10  6  8  8  0
 0  0  0  2  2  6 14  2  2 12  0  8  8 14  4 14  4 10  6  2  0
 0  0  0  0  4  0  8  0 12  4  4  0  4  8  4  4  8  0 12  8  8

generates a code of length 21 over Z16 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+58x^15+434x^16+1188x^17+3110x^18+7430x^19+12458x^20+15918x^21+12811x^22+7518x^23+3067x^24+1048x^25+332x^26+114x^27+40x^28+6x^29+3x^30

The gray image is a code over GF(2) with n=168, k=16 and d=60.
This code was found by Heurico 1.16 in 9.59 seconds.