The generator matrix

 1  1  1  1  1  1  1  1  1  2  8  1  1  2  1 12  1  2  1  1
 0  2  0  2  0  8  6  4  6  4  4  4  2 14 14  2  0 12  4  8
 0  0  2  2 12 14  6 12  8  2  2  8  2  4  4  0  8 10  6 12
 0  0  0  8  0  0  0  8  8  0  0  8  8  0  0  8  8  0  8  8
 0  0  0  0  8  8  0  0  8  0  8  0  8  0  8  0  8  8  8  8

generates a code of length 20 over Z16 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+76x^16+256x^17+362x^18+842x^19+1054x^20+840x^21+357x^22+212x^23+49x^24+24x^25+16x^26+2x^27+4x^28+1x^30

The gray image is a code over GF(2) with n=160, k=12 and d=64.
This code was found by Heurico 1.16 in 0.0683 seconds.