The generator matrix

 1  0  1  1  1  4  1 10  1  2  1  2  1  1  1  2 12  2
 0  1  1  0 11  1 10  1  6 10 11  1  9  2  7  2  1  0
 0  0  2  6  4  6 14  6  4  2  0  4  2  6 12  2  2  0
 0  0  0 12  0  4  0  8  4  4  4  0  4 12  8  0 12  8
 0  0  0  0  8  0  0  8  8  8  0  0  8  0  0  0  0  8
 0  0  0  0  0  8  0  0  0  0  8  8  0  8  8  0  0  8
 0  0  0  0  0  0  8  0  0  0  8  8  8  0  8  0  8  0

generates a code of length 18 over Z16 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+120x^12+204x^13+852x^14+2528x^15+7210x^16+11084x^17+21508x^18+11104x^19+7236x^20+2532x^21+860x^22+192x^23+84x^24+4x^25+12x^26+4x^28+1x^32

The gray image is a code over GF(2) with n=144, k=16 and d=48.
This code was found by Heurico 1.16 in 5.99 seconds.