The generator matrix

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

generates a code of length 20 over Z16 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+92x^18+325x^20+92x^22+1x^24+1x^36

The gray image is a code over GF(2) with n=160, k=9 and d=72.
This code was found by Heurico 1.16 in 0.00646 seconds.