The generator matrix

 1  0  0  1  1  1 14  1  1  6  1  1 12  6 14  8  1  1  1  1  2  8  1
 0  1  0  2  1 11  1 12  2  0  7  9  1  1  1  1 10 15  3  8 12 12  0
 0  0  1  1  5  4  3  6  3  1  7  4  2  5  4  3  3 13  2 12  1  1  0
 0  0  0  4  4  8  4  8 12  0  0 12 12  8  8 12  0  0  4  4  0  4  8
 0  0  0  0  8  0  0  8  8  8  8  0  0  0  8  8  0  0  8  8  0  0  8

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

Homogenous weight enumerator: w(x)=1x^0+125x^18+436x^19+1728x^20+3658x^21+6061x^22+8714x^23+6166x^24+3676x^25+1641x^26+384x^27+132x^28+26x^29+11x^30+2x^31+5x^32+2x^34

The gray image is a code over GF(2) with n=184, k=15 and d=72.
This code was found by Heurico 1.16 in 2.55 seconds.