The generator matrix

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

generates a code of length 20 over Z16 who´s minimum homogenous weight is 19.

Homogenous weight enumerator: w(x)=1x^0+60x^19+132x^20+60x^21+1x^22+1x^26+1x^32

The gray image is a code over GF(2) with n=160, k=8 and d=76.
This code was found by Heurico 1.16 in 0.00137 seconds.