The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+123x^12+148x^13+634x^14+1096x^15+1919x^16+2844x^17+2798x^18+2864x^19+2016x^20+1100x^21+582x^22+136x^23+96x^24+4x^25+18x^26+5x^28

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 13.7 seconds.