The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 13.

Homogenous weight enumerator: w(x)=1x^0+64x^13+103x^14+370x^15+362x^16+838x^17+613x^18+860x^19+359x^20+372x^21+81x^22+50x^23+13x^24+6x^25+3x^26+1x^28

The gray image is a code over GF(2) with n=72, k=12 and d=26.
This code was found by Heurico 1.16 in 0.131 seconds.