The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+116x^15+138x^16+210x^17+133x^18+224x^19+82x^20+60x^21+26x^22+28x^23+3x^24+2x^25+1x^26

The gray image is a code over GF(2) with n=72, k=10 and d=30.
This code was found by Heurico 1.16 in 0.026 seconds.