The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 10.

Homogenous weight enumerator: w(x)=1x^0+41x^10+104x^11+283x^12+924x^13+2361x^14+3460x^15+9269x^16+7980x^17+17086x^18+7364x^19+9162x^20+3796x^21+2486x^22+844x^23+218x^24+100x^25+41x^26+4x^27+11x^28+1x^30

The gray image is a code over GF(2) with n=72, k=16 and d=20.
This code was found by Heurico 1.16 in 8.22 seconds.