The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+110x^10+120x^11+414x^12+632x^13+1841x^14+3468x^15+7709x^16+12180x^17+12520x^18+12172x^19+7856x^20+3444x^21+1830x^22+612x^23+394x^24+124x^25+82x^26+12x^27+10x^28+4x^29+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 12.4 seconds.