The generator matrix

 1  0  1  1  1  6  1  1  1 12  1 10  1  1  1  1  1  1  1  0  1  6  2
 0  1  3  6  5  1 15  9 12  1 10  1  5  3 15  9 15  9  0  1 12  1  0
 0  0  8  0  0  0  8  0  8  8  8  8  8  0  0  0  8  0  0  8  0  8  0
 0  0  0  8  0  8  8  8  8  8  0  0  0  0  8  0  0  8  8  0  8  0  0
 0  0  0  0  8  0  8  8  0  0  0  0  8  8  8  0  8  0  0  0  8  8  8

generates a code of length 23 over Z16 who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+174x^20+128x^21+576x^22+256x^23+641x^24+128x^25+128x^26+13x^28+2x^32+1x^36

The gray image is a code over GF(2) with n=184, k=11 and d=80.
This code was found by Heurico 1.16 in 0.0197 seconds.