The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+148x^16+64x^17+612x^18+704x^19+1066x^20+704x^21+584x^22+64x^23+122x^24+20x^26+6x^28+1x^32

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 0.488 seconds.