The generator matrix

 1  0  1  1  1  1  1  0  1  1  1  0  1  1  1
 0  1  1  8  0  1  8  1  0  7  8  1  7  0  0
 0  0  6  0  0  0  0  0  3  3  3  0  3  3  0
 0  0  0  3  0  0  0  0  6  3  6  6  6  3  3
 0  0  0  0  3  0  0  3  6  6  6  0  3  0  6
 0  0  0  0  0  6  0  6  6  6  3  6  0  0  6
 0  0  0  0  0  0  3  6  3  0  6  6  3  6  3

generates a code of length 15 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+56x^18+18x^20+186x^21+54x^22+180x^23+558x^24+432x^25+720x^26+2228x^27+1296x^28+1440x^29+4398x^30+1728x^31+1440x^32+3114x^33+864x^34+576x^35+222x^36+114x^39+54x^42+4x^45

The gray image is a code over GF(3) with n=45, k=9 and d=18.
This code was found by Heurico 1.16 in 0.422 seconds.