The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+34x^12+222x^13+599x^14+1166x^15+1853x^16+2700x^17+3113x^18+2700x^19+2090x^20+1222x^21+441x^22+166x^23+54x^24+16x^25+7x^26

The gray image is a code over GF(2) with n=72, k=14 and d=24.
This code was found by Heurico 1.11 in 0.609 seconds.