The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+75x^18+80x^19+282x^20+320x^21+1054x^22+480x^23+1068x^24+320x^25+260x^26+80x^27+52x^28+18x^30+3x^32+1x^34+2x^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 6.46 seconds.