The generator matrix

 1  0  1  1  1  6  1  1  0  1  1  6  1  1  1  1  1  1  2  2  1
 0  1  3  6  1  1  0  3  1  6  5  1  0  6  0  6  3  5  0  6  4
 0  0  4  0  0  0  0  4  0  4  4  4  0  0  4  4  0  4  0  0  4
 0  0  0  4  0  0  4  4  0  4  0  4  0  4  4  0  0  0  4  0  0
 0  0  0  0  4  0  4  0  4  4  4  4  0  4  0  4  0  0  0  0  0
 0  0  0  0  0  4  0  4  4  4  0  4  4  4  0  0  4  0  0  0  0

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

Homogenous weight enumerator: w(x)=1x^0+23x^16+50x^17+44x^18+174x^19+64x^20+324x^21+58x^22+172x^23+36x^24+42x^25+24x^26+6x^27+4x^28+2x^30

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 0.0114 seconds.