The generator matrix

 1  0  0  1  1  1  6  1  2  1  4  1 10  1 10  1  4  1  0  1  1 12  0
 0  1  0  1  6  7  1 11  6 10  1  8  1 12  1  5  1 15  1  5  7  2  1
 0  0  1  1  3  2  3  0  1  6  7  3  2  2  7  4  0  5  5  5  2  0  4
 0  0  0 12  0  0  8  4  4  0  8 12 12 12  4  4  4  0  8  8  0 12  4
 0  0  0  0  8  0  8  8  0  8  0  8  8  0  8  8  0  0  8  8  8  8  0
 0  0  0  0  0  8  0  0  0  8  8  0  8  8  0  8  8  0  8  0  0  8  0

generates a code of length 23 over Z16 who´s minimum homogenous weight is 17.

Homogenous weight enumerator: w(x)=1x^0+60x^17+339x^18+1130x^19+3025x^20+7634x^21+11202x^22+18688x^23+11276x^24+7712x^25+3028x^26+1034x^27+286x^28+82x^29+22x^30+12x^31+3x^32+1x^34+1x^36

The gray image is a code over GF(2) with n=184, k=16 and d=68.
This code was found by Heurico 1.16 in 8.81 seconds.