The generator matrix

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

generates a code of length 24 over Z16 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+296x^18+806x^19+1739x^20+3426x^21+6417x^22+11614x^23+16639x^24+11774x^25+6915x^26+3330x^27+1507x^28+702x^29+255x^30+90x^31+16x^32+2x^33+5x^34+2x^36

The gray image is a code over GF(2) with n=192, k=16 and d=72.
This code was found by Heurico 1.16 in 17.4 seconds.