The generator matrix

 1  0  1  1  1 14  1  0  1 14  1  1  1  0 14  1  1  1  8  1  1  6  2
 0  1 11  6  1  1  8  1  3  1  5  0 14  1  1  5  8 11  1  8 12  1  8
 0  0 12  0  0  0  0  0  8  8 12  0  8  4 12 12  4  0  4  8 12  4  4
 0  0  0 12  0  0  8  4  8  4  8 12  0  0 12 12  4 12  8  0  4 12  0
 0  0  0  0  4 12 12 12  8  0 12 12 12 12 12  8 12  8  0  0  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+194x^18+112x^19+858x^20+1536x^21+3514x^22+3872x^23+3662x^24+1536x^25+806x^26+112x^27+142x^28+30x^30+9x^32

The gray image is a code over GF(2) with n=184, k=14 and d=72.
This code was found by Heurico 1.16 in 0.96 seconds.