The generator matrix

 1  0  1  1  1  6  1  1  4  1  1  6  1  4  1  1  1  0  6  2
 0  1  1  0  3  1  2  7  1  0  5  1  1  1  0  5  4  1  1  1
 0  0  2  0  6  4  0  0  6  2  6  6  4  4  4  0  4  2  4  2
 0  0  0  2  0  4  6  2  4  6  2  6  4  0  0  4  6  2  0  0
 0  0  0  0  4  4  4  4  0  4  0  4  0  0  4  4  0  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+154x^16+64x^17+340x^18+192x^19+571x^20+192x^21+314x^22+64x^23+133x^24+16x^26+5x^28+2x^30

The gray image is a code over GF(2) with n=80, k=11 and d=32.
This code was found by Heurico 1.16 in 0.042 seconds.