The generator matrix

 1  0  1  1  1  6  1  1  0  1  1  0  1  1  1  1  1  1  2  1
 0  1  3  6  1  1  0  3  1  6  3  1  0  6  4  6  2  0  6  0
 0  0  4  0  0  4  4  0  0  4  4  4  0  0  4  0  4  4  4  0
 0  0  0  4  0  4  4  4  4  0  4  0  4  0  0  4  4  4  4  0
 0  0  0  0  4  4  4  4  0  4  0  4  0  4  4  4  4  0  0  0

generates a code of length 20 over Z8 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+23x^16+40x^17+65x^18+88x^19+84x^20+88x^21+58x^22+40x^23+20x^24+2x^26+2x^30+1x^34

The gray image is a code over GF(2) with n=80, k=9 and d=32.
This code was found by Heurico 1.16 in 0.00398 seconds.