The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+114x^15+146x^16+210x^17+125x^18+220x^19+74x^20+76x^21+34x^22+18x^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 1.11 in 0.0685 seconds.