The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 11.

Homogenous weight enumerator: w(x)=1x^0+30x^11+120x^12+256x^13+534x^14+1088x^15+1881x^16+2720x^17+3052x^18+2732x^19+2016x^20+1088x^21+488x^22+240x^23+78x^24+32x^25+20x^26+6x^27+2x^30

The gray image is a code over GF(2) with n=72, k=14 and d=22.
This code was found by Heurico 1.16 in 1.2 seconds.