The generator matrix

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

generates a code of length 21 over Z8 who´s minimum homogenous weight is 13.

Homogenous weight enumerator: w(x)=1x^0+42x^13+132x^14+238x^15+341x^16+518x^17+968x^18+1804x^19+2609x^20+2958x^21+2699x^22+1828x^23+1039x^24+586x^25+275x^26+156x^27+99x^28+56x^29+21x^30+6x^31+7x^32+1x^34

The gray image is a code over GF(2) with n=84, k=14 and d=26.
This code was found by Heurico 1.16 in 2.38 seconds.