The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+17x^16+40x^17+61x^18+98x^19+112x^20+80x^21+37x^22+28x^23+22x^24+8x^25+4x^26+2x^27+1x^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 0.005 seconds.