The generator matrix

 1  0  0  1  1  1  2  2  1  1  0  1  2  2  1  1  1  1  6  0  1
 0  1  0  0  1  1  1  4  3  3  1  0  1  1  2  6  5  7  1  2  0
 0  0  1  1  0  3  1  1  0  3  4  2  3  6  5  3  1  6  0  1  2
 0  0  0  2  4  6  2  6  6  4  6  6  4  0  2  0  0  6  6  4  0

generates a code of length 21 over Z8 who´s minimum homogenous weight is 17.

Homogenous weight enumerator: w(x)=1x^0+78x^17+163x^18+408x^19+236x^20+364x^21+222x^22+304x^23+111x^24+118x^25+31x^26+8x^27+2x^28+2x^32

The gray image is a code over GF(2) with n=84, k=11 and d=34.
This code was found by Heurico 1.11 in 0.03 seconds.