The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 14.

Homogenous weight enumerator: w(x)=1x^0+33x^14+38x^15+30x^16+94x^17+135x^18+88x^19+26x^20+32x^21+20x^22+2x^23+7x^24+2x^25+3x^26+1x^30

The gray image is a code over GF(2) with n=72, k=9 and d=28.
This code was found by Heurico 1.16 in 0.00415 seconds.