The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+65x^10+180x^11+406x^12+770x^13+1832x^14+4306x^15+7389x^16+11098x^17+13306x^18+11186x^19+7560x^20+4262x^21+1744x^22+822x^23+378x^24+126x^25+77x^26+18x^27+10x^28

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 14.8 seconds.