The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+202x^12+12x^13+564x^14+220x^15+1262x^16+792x^17+2006x^18+792x^19+1431x^20+220x^21+504x^22+12x^23+137x^24+30x^26+7x^28

The gray image is a code over GF(2) with n=72, k=13 and d=24.
This code was found by Heurico 1.16 in 1.62 seconds.