The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+158x^12+64x^13+720x^14+832x^15+2526x^16+2176x^17+3424x^18+2176x^19+2540x^20+832x^21+720x^22+64x^23+144x^24+6x^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 1.41 seconds.