The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  2  2  1  2  1  1  1  4  8  2  4  1
 0 12  0  0  0  0  0  0  0  4  8  4  8 12  4 12  8  4 12 12  8  0  4  0
 0  0 12  0  0  8 12 12  4  4  8  0 12  0  4  8  4 12  0  0  8 12  8  0
 0  0  0 12  0 12 12  4  8  0  0  0  8  8  4  4 12  4 12  4  4  4  8  0
 0  0  0  0 12  4  8  4  4  0  8  4  4  0  4  4  8  0  8  4 12  4  4  0

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

Homogenous weight enumerator: w(x)=1x^0+54x^18+62x^19+77x^20+264x^21+272x^22+990x^23+727x^24+916x^25+274x^26+250x^27+83x^28+64x^29+36x^30+10x^31+8x^32+4x^33+4x^34

The gray image is a code over GF(2) with n=192, k=12 and d=72.
This code was found by Heurico 1.16 in 0.117 seconds.