The generator matrix

 1  0  1  1  1  6  1  1 12  1  1 10  1  1  0  6  1  1  0  1  1  1  1
 0  1  3  6  5  1 12  7  1 10  9  1  0  5  1  1 12  0  1  6  6  0  0
 0  0  8  0  0  0  0  0  0  0  0  8  0  0  8  8  0  0  8  0  8  8  8
 0  0  0  8  0  0  0  0  0  0  0  8  0  0  8  8  8  8  8  8  0  0  0
 0  0  0  0  8  0  0  0  0  8  0  0  8  8  0  8  8  8  0  8  0  8  8
 0  0  0  0  0  8  0  0  0  8  0  0  8  0  8  8  0  8  8  0  8  0  0
 0  0  0  0  0  0  8  0  0  0  8  0  8  8  8  0  0  8  8  8  0  0  0
 0  0  0  0  0  0  0  8  0  8  8  8  8  0  8  0  8  8  0  0  0  0  0
 0  0  0  0  0  0  0  0  8  8  8  8  8  8  8  8  8  0  8  8  8  8  8

generates a code of length 23 over Z16 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+171x^16+244x^18+128x^19+1726x^20+2304x^21+9556x^22+4352x^23+9779x^24+2304x^25+1660x^26+128x^27+304x^28+60x^30+48x^32+2x^36+1x^40

The gray image is a code over GF(2) with n=184, k=15 and d=64.
This code was found by Heurico 1.16 in 19.2 seconds.