The generator matrix

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

generates a code of length 23 over Z16 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+120x^18+270x^20+288x^21+897x^22+960x^23+907x^24+288x^25+239x^26+97x^28+23x^30+4x^32+1x^34+1x^36

The gray image is a code over GF(2) with n=184, k=12 and d=72.
This code was found by Heurico 1.16 in 0.174 seconds.