The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+84x^12+352x^13+509x^14+1498x^15+1681x^16+2676x^17+2601x^18+2926x^19+1727x^20+1432x^21+471x^22+310x^23+89x^24+20x^25+3x^26+2x^27+1x^28+1x^32

The gray image is a code over GF(2) with n=72, k=14 and d=24.
This code was found by Heurico 1.16 in 1.14 seconds.