The generator matrix

 1  0  1  1  1  6  1  1  4  1  1  1  1  2  4  1  1  6  1  1  1
 0  1  1  0  3  1  2  7  1  0  3  2  3  1  1  3  6  1  0  4  0
 0  0  2  0  6  4  0  0  6  2  2  6  4  4  0  6  0  6  0  4  4
 0  0  0  2  0  4  6  2  4  6  2  4  0  2  2  2  0  6  0  6  4
 0  0  0  0  4  4  4  4  0  0  4  4  0  0  4  0  4  4  4  0  4

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

Homogenous weight enumerator: w(x)=1x^0+29x^16+94x^17+154x^18+236x^19+326x^20+372x^21+336x^22+234x^23+150x^24+78x^25+18x^26+8x^27+6x^28+4x^30+2x^31

The gray image is a code over GF(2) with n=84, k=11 and d=32.
This code was found by Heurico 1.16 in 0.0391 seconds.