The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+87x^18+170x^19+501x^20+822x^21+1337x^22+2384x^23+1345x^24+820x^25+475x^26+130x^27+71x^28+22x^29+19x^30+4x^31+2x^32+2x^34

The gray image is a code over GF(2) with n=184, k=13 and d=72.
This code was found by Heurico 1.16 in 0.309 seconds.