The generator matrix

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

generates a code of length 21 over Z8 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+31x^16+50x^17+82x^18+90x^19+150x^20+244x^21+139x^22+84x^23+80x^24+26x^25+13x^26+18x^27+10x^28+5x^30+1x^34

The gray image is a code over GF(2) with n=84, k=10 and d=32.
This code was found by Heurico 1.16 in 0.0159 seconds.